diff --git a/code/solutions/de.itemis.mps.extensions.changelog/models/de.itemis.mps.extensions.changelog.mps b/code/solutions/de.itemis.mps.extensions.changelog/models/de.itemis.mps.extensions.changelog.mps
index 40b530db3..d5a638175 100644
--- a/code/solutions/de.itemis.mps.extensions.changelog/models/de.itemis.mps.extensions.changelog.mps
+++ b/code/solutions/de.itemis.mps.extensions.changelog/models/de.itemis.mps.extensions.changelog.mps
@@ -7,7 +7,7 @@
     <use id="446c26eb-2b7b-4bf0-9b35-f83fa582753e" name="jetbrains.mps.lang.modelapi" version="0" />
     <use id="c7fb639f-be78-4307-89b0-b5959c3fa8c8" name="jetbrains.mps.lang.text" version="0" />
     <use id="ef7bf5ac-d06c-4342-b11d-e42104eb9343" name="jetbrains.mps.lang.plugin.standalone" version="0" />
-    <use id="82194f31-b6f9-4f39-bf3d-bad4ce201c4e" name="de.itemis.mps.spellcheck" version="0" />
+    <use id="82194f31-b6f9-4f39-bf3d-bad4ce201c4e" name="de.itemis.mps.spellcheck" version="-1" />
   </languages>
   <imports>
     <import index="hba4" ref="63e0e566-5131-447e-90e3-12ea330e1a00/r:f5bd2ad9-cd54-4408-b815-07f9f306f074(com.mbeddr.mpsutil.blutil/com.mbeddr.mpsutil.blutil.structure)" />
@@ -502,6 +502,70 @@
           </node>
         </node>
       </node>
+      <node concept="15bAme" id="3EttCnc6$0u" role="15bAlL">
+        <node concept="2DRihI" id="1ieETfbmCxp" role="15bAlk">
+          <node concept="2hgSXJ" id="1ieETfbmCXZ" role="1PaTwD">
+            <node concept="1PaTwC" id="1ieETfbmCY0" role="2hiFM$">
+              <node concept="15Ami3" id="1ieETfbmCY1" role="1PaTwD">
+                <node concept="37shsh" id="1ieETfbmCY2" role="15Aodc">
+                  <node concept="1dCxOk" id="1ieETfbmCY3" role="37shsm">
+                    <property role="1XweGW" value="7e450f4e-1ac3-41ef-a851-4598161bdb94" />
+                    <property role="1XxBO9" value="de.slisson.mps.tables" />
+                  </node>
+                </node>
+              </node>
+              <node concept="3oM_SD" id="1ieETfbmCY4" role="1PaTwD">
+                <property role="3oM_SC" value=":" />
+              </node>
+            </node>
+          </node>
+          <node concept="3oM_SD" id="1ieETfbmCZs" role="1PaTwD">
+            <property role="3oM_SC" value="Various" />
+          </node>
+          <node concept="3oM_SD" id="1ieETfbmD20" role="1PaTwD">
+            <property role="3oM_SC" value="fixes" />
+          </node>
+          <node concept="3oM_SD" id="1ieETfbmD3n" role="1PaTwD">
+            <property role="3oM_SC" value="to" />
+          </node>
+          <node concept="3oM_SD" id="1ieETfbmD4J" role="1PaTwD">
+            <property role="3oM_SC" value="table" />
+          </node>
+          <node concept="3oM_SD" id="1ieETfbmD9n" role="1PaTwD">
+            <property role="3oM_SC" value="end" />
+          </node>
+          <node concept="3oM_SD" id="1ieETfbmDan" role="1PaTwD">
+            <property role="3oM_SC" value="cells" />
+          </node>
+          <node concept="3oM_SD" id="1ieETfbmDd3" role="1PaTwD">
+            <property role="3oM_SC" value="in" />
+          </node>
+          <node concept="3oM_SD" id="1ieETfbmDe5" role="1PaTwD">
+            <property role="3oM_SC" value="combination" />
+          </node>
+          <node concept="3oM_SD" id="1ieETfbmDf8" role="1PaTwD">
+            <property role="3oM_SC" value="with" />
+          </node>
+          <node concept="3oM_SD" id="1ieETfbmDgc" role="1PaTwD">
+            <property role="3oM_SC" value="insert" />
+          </node>
+          <node concept="3oM_SD" id="1ieETfbmDhh" role="1PaTwD">
+            <property role="3oM_SC" value="and" />
+          </node>
+          <node concept="3oM_SD" id="1ieETfbmDin" role="1PaTwD">
+            <property role="3oM_SC" value="deletion" />
+          </node>
+          <node concept="3oM_SD" id="1ieETfbmDki" role="1PaTwD">
+            <property role="3oM_SC" value="handlers" />
+          </node>
+          <node concept="3oM_SD" id="1ieETfbmDlq" role="1PaTwD">
+            <property role="3oM_SC" value="were" />
+          </node>
+          <node concept="3oM_SD" id="1ieETfbmDmz" role="1PaTwD">
+            <property role="3oM_SC" value="made." />
+          </node>
+        </node>
+      </node>
     </node>
     <node concept="15bmVD" id="2IcGFIaJNN3" role="15bmVC">
       <node concept="15ShDW" id="2IcGFIaJNN0" role="15bq2Y">
diff --git a/code/tables/languages/de.slisson.mps.tables.demolang/languageModels/editor.mps b/code/tables/languages/de.slisson.mps.tables.demolang/languageModels/editor.mps
index bf0dbb4f1..51235c47f 100644
--- a/code/tables/languages/de.slisson.mps.tables.demolang/languageModels/editor.mps
+++ b/code/tables/languages/de.slisson.mps.tables.demolang/languageModels/editor.mps
@@ -2144,7 +2144,7 @@
                 <node concept="liA8E" id="5ivXze3esyy" role="2OqNvi">
                   <ref role="37wK5l" to="6dpw:DXnsYPPSef" resolve="setCell" />
                   <node concept="3cmrfG" id="5ivXze3eszF" role="37wK5m">
-                    <property role="3cmrfH" value="0" />
+                    <property role="3cmrfH" value="1" />
                   </node>
                   <node concept="3cmrfG" id="5ivXze3esEi" role="37wK5m">
                     <property role="3cmrfH" value="0" />
diff --git a/code/tables/languages/de.slisson.mps.tables/generator/template/main@generator.mps b/code/tables/languages/de.slisson.mps.tables/generator/template/main@generator.mps
index c69f91250..f4f43948d 100644
--- a/code/tables/languages/de.slisson.mps.tables/generator/template/main@generator.mps
+++ b/code/tables/languages/de.slisson.mps.tables/generator/template/main@generator.mps
@@ -53,6 +53,15 @@
     <import index="tpek" ref="r:00000000-0000-4000-0000-011c895902c0(jetbrains.mps.baseLanguage.behavior)" implicit="true" />
   </imports>
   <registry>
+    <language id="a247e09e-2435-45ba-b8d2-07e93feba96a" name="jetbrains.mps.baseLanguage.tuples">
+      <concept id="1238852151516" name="jetbrains.mps.baseLanguage.tuples.structure.IndexedTupleType" flags="in" index="1LlUBW">
+        <child id="1238852204892" name="componentType" index="1Lm7xW" />
+      </concept>
+      <concept id="1238857743184" name="jetbrains.mps.baseLanguage.tuples.structure.IndexedTupleMemberAccessExpression" flags="nn" index="1LFfDK">
+        <child id="1238857764950" name="tuple" index="1LFl5Q" />
+        <child id="1238857834412" name="index" index="1LF_Uc" />
+      </concept>
+    </language>
     <language id="18bc6592-03a6-4e29-a83a-7ff23bde13ba" name="jetbrains.mps.lang.editor">
       <concept id="6029276237631252951" name="jetbrains.mps.lang.editor.structure.StyleAttributeReferenceExpression" flags="ng" index="1Z6Ecs">
         <reference id="6029276237631253682" name="attributeDeclaration" index="1Z6EpT" />
@@ -144,6 +153,9 @@
         <property id="1176718929932" name="isFinal" index="3TUv4t" />
         <child id="1068431790190" name="initializer" index="33vP2m" />
       </concept>
+      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ng" index="366HgL">
+        <property id="1513279640906337053" name="inferTypeParams" index="373rjd" />
+      </concept>
       <concept id="1068498886296" name="jetbrains.mps.baseLanguage.structure.VariableReference" flags="nn" index="37vLTw">
         <reference id="1068581517664" name="variableDeclaration" index="3cqZAo" />
       </concept>
@@ -519,6 +531,7 @@
         <child id="540871147943773366" name="argument" index="25WWJ7" />
       </concept>
       <concept id="1176923520476" name="jetbrains.mps.baseLanguage.collections.structure.ExcludeOperation" flags="nn" index="66VNe" />
+      <concept id="1204980550705" name="jetbrains.mps.baseLanguage.collections.structure.VisitAllOperation" flags="nn" index="2es0OD" />
       <concept id="1151688443754" name="jetbrains.mps.baseLanguage.collections.structure.ListType" flags="in" index="_YKpA">
         <child id="1151688676805" name="elementType" index="_ZDj9" />
       </concept>
@@ -1900,7 +1913,7 @@
                                                       <node concept="34oBXx" id="6eBFmDF0dH1" role="2OqNvi" />
                                                       <node concept="2OqwBi" id="6eBFmDF0dH2" role="2Oq$k0">
                                                         <node concept="3Tsc0h" id="6eBFmDF0dH3" role="2OqNvi">
-                                                          <ref role="3TtcxE" to="bnk3:1dAqnm8mHZm" resolve="columnHeaders" />
+                                                          <ref role="3TtcxE" to="bnk3:1dAqnm8mIel" resolve="rowHeaders" />
                                                         </node>
                                                         <node concept="30H73N" id="6eBFmDF0dH4" role="2Oq$k0" />
                                                       </node>
@@ -2751,6 +2764,45 @@
               </node>
             </node>
           </node>
+          <node concept="3cpWs8" id="7bbwKxsnBwv" role="3cqZAp">
+            <node concept="3cpWsn" id="7bbwKxsnBww" role="3cpWs9">
+              <property role="TrG5h" value="reference" />
+              <node concept="3uibUv" id="7bbwKxsnB8I" role="1tU5fm">
+                <ref role="3uigEE" to="6dpw:3jHPIDnje7S" resolve="StringHeaderReference" />
+              </node>
+              <node concept="2ShNRf" id="7bbwKxsnBwx" role="33vP2m">
+                <node concept="1pGfFk" id="7bbwKxsnBwy" role="2ShVmc">
+                  <ref role="37wK5l" to="6dpw:3jHPIDnjhnw" resolve="StringHeaderReference" />
+                  <node concept="Xl_RD" id="7bbwKxsnBwz" role="37wK5m">
+                    <property role="Xl_RC" value="key" />
+                    <node concept="17Uvod" id="7bbwKxsnBw$" role="lGtFl">
+                      <property role="2qtEX9" value="value" />
+                      <property role="P4ACc" value="f3061a53-9226-4cc5-a443-f952ceaf5816/1070475926800/1070475926801" />
+                      <node concept="3zFVjK" id="7bbwKxsnBw_" role="3zH0cK">
+                        <node concept="3clFbS" id="7bbwKxsnBwA" role="2VODD2">
+                          <node concept="3clFbF" id="7bbwKxsnBwB" role="3cqZAp">
+                            <node concept="2OqwBi" id="7bbwKxsnBwC" role="3clFbG">
+                              <node concept="2OqwBi" id="7bbwKxsnBwD" role="2Oq$k0">
+                                <node concept="2JrnkZ" id="7bbwKxsnBwE" role="2Oq$k0">
+                                  <node concept="30H73N" id="7bbwKxsnBwF" role="2JrQYb" />
+                                </node>
+                                <node concept="liA8E" id="7bbwKxsnBwG" role="2OqNvi">
+                                  <ref role="37wK5l" to="mhbf:~SNode.getNodeId()" resolve="getNodeId" />
+                                </node>
+                              </node>
+                              <node concept="liA8E" id="7bbwKxsnBwH" role="2OqNvi">
+                                <ref role="37wK5l" to="wyt6:~Object.toString()" resolve="toString" />
+                              </node>
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
           <node concept="3cpWs8" id="28GSY8aqJJJ" role="3cqZAp">
             <node concept="3cpWsn" id="28GSY8aqJJK" role="3cpWs9">
               <property role="TrG5h" value="grid" />
@@ -2760,36 +2812,8 @@
                   <node concept="37vLTw" id="1YS2uFKaZ3F" role="37wK5m">
                     <ref role="3cqZAo" node="1YS2uFKaXbb" resolve="queryResult" />
                   </node>
-                  <node concept="2ShNRf" id="32h0_VH0m97" role="37wK5m">
-                    <node concept="1pGfFk" id="32h0_VH0m96" role="2ShVmc">
-                      <ref role="37wK5l" to="6dpw:3jHPIDnjhnw" resolve="StringHeaderReference" />
-                      <node concept="Xl_RD" id="2Jt5bYCBO5v" role="37wK5m">
-                        <property role="Xl_RC" value="key" />
-                        <node concept="17Uvod" id="2Jt5bYCBYsS" role="lGtFl">
-                          <property role="2qtEX9" value="value" />
-                          <property role="P4ACc" value="f3061a53-9226-4cc5-a443-f952ceaf5816/1070475926800/1070475926801" />
-                          <node concept="3zFVjK" id="2Jt5bYCBYsT" role="3zH0cK">
-                            <node concept="3clFbS" id="2Jt5bYCBYsU" role="2VODD2">
-                              <node concept="3clFbF" id="2Jt5bYCBZ$F" role="3cqZAp">
-                                <node concept="2OqwBi" id="2Jt5bYCC8eB" role="3clFbG">
-                                  <node concept="2OqwBi" id="2Jt5bYCC5nE" role="2Oq$k0">
-                                    <node concept="2JrnkZ" id="2Jt5bYCC53N" role="2Oq$k0">
-                                      <node concept="30H73N" id="2Jt5bYCBZ$E" role="2JrQYb" />
-                                    </node>
-                                    <node concept="liA8E" id="2Jt5bYCC6jR" role="2OqNvi">
-                                      <ref role="37wK5l" to="mhbf:~SNode.getNodeId()" resolve="getNodeId" />
-                                    </node>
-                                  </node>
-                                  <node concept="liA8E" id="2Jt5bYCC974" role="2OqNvi">
-                                    <ref role="37wK5l" to="wyt6:~Object.toString()" resolve="toString" />
-                                  </node>
-                                </node>
-                              </node>
-                            </node>
-                          </node>
-                        </node>
-                      </node>
-                    </node>
+                  <node concept="37vLTw" id="7bbwKxsnBwI" role="37wK5m">
+                    <ref role="3cqZAo" node="7bbwKxsnBww" resolve="reference" />
                   </node>
                   <node concept="37vLTw" id="3vPRuXRYMu7" role="37wK5m">
                     <ref role="3cqZAo" node="66vYtX1MAUW" resolve="insertAction" />
@@ -2864,7 +2888,258 @@
               </node>
             </node>
           </node>
-          <node concept="3clFbH" id="28GSY8aqO3d" role="3cqZAp" />
+          <node concept="3clFbF" id="dzDMr0FT0R" role="3cqZAp">
+            <node concept="2OqwBi" id="dzDMr0FUaA" role="3clFbG">
+              <node concept="2es0OD" id="dzDMr0FVsd" role="2OqNvi">
+                <node concept="1bVj0M" id="dzDMr0FVsf" role="23t8la">
+                  <node concept="3clFbS" id="dzDMr0FVsg" role="1bW5cS">
+                    <node concept="3clFbJ" id="3zknox6GW3w" role="3cqZAp">
+                      <node concept="3clFbS" id="3zknox6GW3y" role="3clFbx">
+                        <node concept="3cpWs6" id="3zknox6H0bi" role="3cqZAp" />
+                      </node>
+                      <node concept="3clFbC" id="3zknox6GXpk" role="3clFbw">
+                        <node concept="10Nm6u" id="3zknox6GYfX" role="3uHU7w" />
+                        <node concept="37vLTw" id="3zknox6GWJE" role="3uHU7B">
+                          <ref role="3cqZAo" node="dzDMr0FVsh" resolve="header" />
+                        </node>
+                      </node>
+                    </node>
+                    <node concept="3cpWs8" id="63uETA64d6U" role="3cqZAp">
+                      <node concept="3cpWsn" id="63uETA64d6V" role="3cpWs9">
+                        <property role="TrG5h" value="findIndex" />
+                        <node concept="1LlUBW" id="63uETA64cJ9" role="1tU5fm">
+                          <node concept="10Oyi0" id="63uETA64cJe" role="1Lm7xW" />
+                          <node concept="10Oyi0" id="63uETA64cJf" role="1Lm7xW" />
+                        </node>
+                        <node concept="2OqwBi" id="63uETA64d6W" role="33vP2m">
+                          <node concept="37vLTw" id="63uETA64d6X" role="2Oq$k0">
+                            <ref role="3cqZAo" node="28GSY8aqJJK" resolve="grid" />
+                          </node>
+                          <node concept="liA8E" id="63uETA64d6Y" role="2OqNvi">
+                            <ref role="37wK5l" to="6dpw:7bbwKxsCPjE" resolve="findIndex" />
+                            <node concept="37vLTw" id="63uETA64d6Z" role="37wK5m">
+                              <ref role="3cqZAo" node="dzDMr0FVsh" resolve="header" />
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                    </node>
+                    <node concept="3cpWs8" id="63uETA64fBD" role="3cqZAp">
+                      <node concept="3cpWsn" id="63uETA64fBG" role="3cpWs9">
+                        <property role="TrG5h" value="index" />
+                        <node concept="10Oyi0" id="63uETA64fBB" role="1tU5fm" />
+                        <node concept="3cmrfG" id="63uETA64m_L" role="33vP2m">
+                          <property role="3cmrfH" value="0" />
+                        </node>
+                      </node>
+                    </node>
+                    <node concept="3clFbJ" id="63uETA64nyS" role="3cqZAp">
+                      <node concept="3clFbS" id="63uETA64nyU" role="3clFbx">
+                        <node concept="3clFbF" id="63uETA64yjK" role="3cqZAp">
+                          <node concept="37vLTI" id="63uETA64yUM" role="3clFbG">
+                            <node concept="1LFfDK" id="63uETA64_yx" role="37vLTx">
+                              <node concept="3cmrfG" id="63uETA64_Yl" role="1LF_Uc">
+                                <property role="3cmrfH" value="1" />
+                              </node>
+                              <node concept="37vLTw" id="63uETA64zo1" role="1LFl5Q">
+                                <ref role="3cqZAo" node="63uETA64d6V" resolve="findIndex" />
+                              </node>
+                            </node>
+                            <node concept="37vLTw" id="63uETA64yjI" role="37vLTJ">
+                              <ref role="3cqZAo" node="63uETA64fBG" resolve="index" />
+                            </node>
+                          </node>
+                        </node>
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+                      <node concept="1Wc70l" id="63uETA64tnE" role="3clFbw">
+                        <node concept="3y3z36" id="63uETA64xkG" role="3uHU7w">
+                          <node concept="3cmrfG" id="63uETA64xN2" role="3uHU7w">
+                            <property role="3cmrfH" value="0" />
+                          </node>
+                          <node concept="1LFfDK" id="63uETA64ugR" role="3uHU7B">
+                            <node concept="3cmrfG" id="63uETA64vTg" role="1LF_Uc">
+                              <property role="3cmrfH" value="1" />
+                            </node>
+                            <node concept="37vLTw" id="63uETA64tPc" role="1LFl5Q">
+                              <ref role="3cqZAo" node="63uETA64d6V" resolve="findIndex" />
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="3clFbC" id="63uETA64rQ6" role="3uHU7B">
+                          <node concept="1LFfDK" id="63uETA64q0f" role="3uHU7B">
+                            <node concept="3cmrfG" id="63uETA64qt8" role="1LF_Uc">
+                              <property role="3cmrfH" value="0" />
+                            </node>
+                            <node concept="37vLTw" id="63uETA64oGB" role="1LFl5Q">
+                              <ref role="3cqZAo" node="63uETA64d6V" resolve="findIndex" />
+                            </node>
+                          </node>
+                          <node concept="3cmrfG" id="63uETA64sML" role="3uHU7w">
+                            <property role="3cmrfH" value="0" />
+                          </node>
+                        </node>
+                      </node>
+                    </node>
+                    <node concept="3clFbJ" id="63uETA64AY_" role="3cqZAp">
+                      <node concept="3clFbS" id="63uETA64AYB" role="3clFbx">
+                        <node concept="3clFbF" id="63uETA64KzR" role="3cqZAp">
+                          <node concept="37vLTI" id="63uETA64L7G" role="3clFbG">
+                            <node concept="1LFfDK" id="63uETA64NNX" role="37vLTx">
+                              <node concept="3cmrfG" id="63uETA64Oku" role="1LF_Uc">
+                                <property role="3cmrfH" value="0" />
+                              </node>
+                              <node concept="37vLTw" id="63uETA64LBA" role="1LFl5Q">
+                                <ref role="3cqZAo" node="63uETA64d6V" resolve="findIndex" />
+                              </node>
+                            </node>
+                            <node concept="37vLTw" id="63uETA64KzP" role="37vLTJ">
+                              <ref role="3cqZAo" node="63uETA64fBG" resolve="index" />
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                      <node concept="1Wc70l" id="63uETA64FX8" role="3clFbw">
+                        <node concept="3clFbC" id="63uETA64JuD" role="3uHU7w">
+                          <node concept="3cmrfG" id="63uETA64JYQ" role="3uHU7w">
+                            <property role="3cmrfH" value="0" />
+                          </node>
+                          <node concept="1LFfDK" id="63uETA64IpP" role="3uHU7B">
+                            <node concept="3cmrfG" id="63uETA64IRh" role="1LF_Uc">
+                              <property role="3cmrfH" value="1" />
+                            </node>
+                            <node concept="37vLTw" id="63uETA64HAx" role="1LFl5Q">
+                              <ref role="3cqZAo" node="63uETA64d6V" resolve="findIndex" />
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="3y3z36" id="63uETA64DYT" role="3uHU7B">
+                          <node concept="1LFfDK" id="63uETA64C4x" role="3uHU7B">
+                            <node concept="3cmrfG" id="63uETA64CzF" role="1LF_Uc">
+                              <property role="3cmrfH" value="0" />
+                            </node>
+                            <node concept="37vLTw" id="63uETA64BxW" role="1LFl5Q">
+                              <ref role="3cqZAo" node="63uETA64d6V" resolve="findIndex" />
+                            </node>
+                          </node>
+                          <node concept="3cmrfG" id="63uETA64Ewe" role="3uHU7w">
+                            <property role="3cmrfH" value="0" />
+                          </node>
+                        </node>
+                      </node>
+                    </node>
+                    <node concept="3clFbJ" id="1ieETfbgMhz" role="3cqZAp">
+                      <node concept="3clFbS" id="1ieETfbgMh_" role="3clFbx">
+                        <node concept="3clFbF" id="dzDMr0sj2w" role="3cqZAp">
+                          <node concept="2OqwBi" id="dzDMr0su5S" role="3clFbG">
+                            <node concept="37vLTw" id="dzDMr0_Uqh" role="2Oq$k0">
+                              <ref role="3cqZAo" node="dzDMr0FVsh" resolve="header" />
+                            </node>
+                            <node concept="liA8E" id="dzDMr0szJZ" role="2OqNvi">
+                              <ref role="37wK5l" to="6dpw:74LepNRZ_mF" resolve="setRowInsertBeforeHandler" />
+                              <node concept="2ShNRf" id="dzDMr0sAnV" role="37wK5m">
+                                <node concept="1pGfFk" id="dzDMr0sIp8" role="2ShVmc">
+                                  <property role="373rjd" value="true" />
+                                  <ref role="37wK5l" to="6dpw:28GSY8argx7" resolve="HeaderNodeInsertAction" />
+                                  <node concept="37vLTw" id="63uETA64OVw" role="37wK5m">
+                                    <ref role="3cqZAo" node="63uETA64fBG" resolve="index" />
+                                  </node>
+                                  <node concept="37vLTw" id="dzDMr0sLxb" role="37wK5m">
+                                    <ref role="3cqZAo" node="66vYtX1MAUW" resolve="insertAction" />
+                                  </node>
+                                </node>
+                              </node>
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="3clFbF" id="74LepNS0IfQ" role="3cqZAp">
+                          <node concept="2OqwBi" id="74LepNS0IfR" role="3clFbG">
+                            <node concept="37vLTw" id="74LepNS0IfS" role="2Oq$k0">
+                              <ref role="3cqZAo" node="dzDMr0FVsh" resolve="header" />
+                            </node>
+                            <node concept="liA8E" id="74LepNS0IfT" role="2OqNvi">
+                              <ref role="37wK5l" to="6dpw:dzDMr0rBjq" resolve="setRowInsertHandler" />
+                              <node concept="2ShNRf" id="74LepNS0IfU" role="37wK5m">
+                                <node concept="1pGfFk" id="74LepNS0IfV" role="2ShVmc">
+                                  <property role="373rjd" value="true" />
+                                  <ref role="37wK5l" to="6dpw:28GSY8argx7" resolve="HeaderNodeInsertAction" />
+                                  <node concept="3cpWs3" id="74LepNS0KIq" role="37wK5m">
+                                    <node concept="3cmrfG" id="74LepNS0KK5" role="3uHU7w">
+                                      <property role="3cmrfH" value="1" />
+                                    </node>
+                                    <node concept="37vLTw" id="74LepNS0IfW" role="3uHU7B">
+                                      <ref role="3cqZAo" node="63uETA64fBG" resolve="index" />
+                                    </node>
+                                  </node>
+                                  <node concept="37vLTw" id="74LepNS0IfX" role="37wK5m">
+                                    <ref role="3cqZAo" node="66vYtX1MAUW" resolve="insertAction" />
+                                  </node>
+                                </node>
+                              </node>
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                      <node concept="3y3z36" id="1ieETfbgPd0" role="3clFbw">
+                        <node concept="10Nm6u" id="1ieETfbgPRy" role="3uHU7w" />
+                        <node concept="37vLTw" id="1ieETfbgMZI" role="3uHU7B">
+                          <ref role="3cqZAo" node="66vYtX1MAUW" resolve="insertAction" />
+                        </node>
+                      </node>
+                    </node>
+                    <node concept="3clFbJ" id="1ieETfbgU_5" role="3cqZAp">
+                      <node concept="3clFbS" id="1ieETfbgU_7" role="3clFbx">
+                        <node concept="3clFbF" id="25cxNQTkbyf" role="3cqZAp">
+                          <node concept="2OqwBi" id="25cxNQTkbyg" role="3clFbG">
+                            <node concept="37vLTw" id="25cxNQTkbyh" role="2Oq$k0">
+                              <ref role="3cqZAo" node="dzDMr0FVsh" resolve="header" />
+                            </node>
+                            <node concept="liA8E" id="25cxNQTkbyi" role="2OqNvi">
+                              <ref role="37wK5l" to="6dpw:25cxNQTjAuB" resolve="setRowDeleteHandler" />
+                              <node concept="2ShNRf" id="25cxNQTkbyj" role="37wK5m">
+                                <node concept="1pGfFk" id="25cxNQTkbyk" role="2ShVmc">
+                                  <property role="373rjd" value="true" />
+                                  <ref role="37wK5l" to="6dpw:28GSY8are1j" resolve="HeaderNodeDeleteAction" />
+                                  <node concept="37vLTw" id="25cxNQTkbyl" role="37wK5m">
+                                    <ref role="3cqZAo" node="63uETA64fBG" resolve="index" />
+                                  </node>
+                                  <node concept="37vLTw" id="25cxNQTkbym" role="37wK5m">
+                                    <ref role="3cqZAo" node="1k7j3NOhXAQ" resolve="deleteAction" />
+                                  </node>
+                                </node>
+                              </node>
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                      <node concept="3y3z36" id="1ieETfbgXxC" role="3clFbw">
+                        <node concept="10Nm6u" id="1ieETfbgXDx" role="3uHU7w" />
+                        <node concept="37vLTw" id="1ieETfbgVkz" role="3uHU7B">
+                          <ref role="3cqZAo" node="1k7j3NOhXAQ" resolve="deleteAction" />
+                        </node>
+                      </node>
+                    </node>
+                  </node>
+                  <node concept="Rh6nW" id="dzDMr0FVsh" role="1bW2Oz">
+                    <property role="TrG5h" value="header" />
+                    <node concept="2jxLKc" id="dzDMr0FVsi" role="1tU5fm" />
+                  </node>
+                </node>
+              </node>
+              <node concept="2OqwBi" id="dzDMr0FSmI" role="2Oq$k0">
+                <node concept="liA8E" id="dzDMr0FSmK" role="2OqNvi">
+                  <ref role="37wK5l" to="6dpw:2c3czgm_PPT" resolve="getHeaders" />
+                </node>
+                <node concept="2OqwBi" id="dzDMr0_AmQ" role="2Oq$k0">
+                  <node concept="37vLTw" id="dzDMr0_AmR" role="2Oq$k0">
+                    <ref role="3cqZAo" node="28GSY8aqJJK" resolve="grid" />
+                  </node>
+                  <node concept="liA8E" id="dzDMr0_AmS" role="2OqNvi">
+                    <ref role="37wK5l" to="6dpw:3olMEllxHJh" resolve="getHeaderStore" />
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
           <node concept="3cpWs6" id="1dAqnm8X$dh" role="3cqZAp">
             <node concept="37vLTw" id="28GSY8arGAY" role="3cqZAk">
               <ref role="3cqZAo" node="28GSY8aqJJK" resolve="grid" />
diff --git a/code/tables/languages/de.slisson.mps.tables/runtime/models/de/slisson/mps/tables/runtime/cells.mps b/code/tables/languages/de.slisson.mps.tables/runtime/models/de/slisson/mps/tables/runtime/cells.mps
index f0f041be4..120167b63 100644
--- a/code/tables/languages/de.slisson.mps.tables/runtime/models/de/slisson/mps/tables/runtime/cells.mps
+++ b/code/tables/languages/de.slisson.mps.tables/runtime/models/de/slisson/mps/tables/runtime/cells.mps
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <model ref="r:3d8b4628-659e-4af1-a607-3cc893005b62(de.slisson.mps.tables.runtime.cells)">
   <persistence version="9" />
+  <attribute name="doNotGenerate" value="false" />
   <languages>
     <use id="774bf8a0-62e5-41e1-af63-f4812e60e48b" name="jetbrains.mps.baseLanguage.checkedDots" version="0" />
     <use id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures" version="0" />
@@ -62,8 +63,8 @@
     <import index="c17a" ref="8865b7a8-5271-43d3-884c-6fd1d9cfdd34/java:org.jetbrains.mps.openapi.language(MPS.OpenAPI/)" />
     <import index="kvq8" ref="r:2e938759-cfd0-47cd-9046-896d85204f59(de.slisson.mps.hacks.editor)" />
     <import index="9hsz" ref="r:16d53f5e-7835-4b72-9581-fafeae0db9b1(jetbrains.mps.lang.editor.enumMigration)" />
-    <import index="alof" ref="742f6602-5a2f-4313-aa6e-ae1cd4ffdc61/java:jetbrains.mps.ide.project(MPS.Platform/)" />
     <import index="lzb2" ref="498d89d2-c2e9-11e2-ad49-6cf049e62fe5/java:com.intellij.ui(MPS.IDEA/)" />
+    <import index="alof" ref="742f6602-5a2f-4313-aa6e-ae1cd4ffdc61/java:jetbrains.mps.ide.project(MPS.Platform/)" />
     <import index="22ra" ref="1ed103c3-3aa6-49b7-9c21-6765ee11f224/java:jetbrains.mps.openapi.editor.update(MPS.Editor/)" />
     <import index="gsia" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:javax.swing.event(JDK/)" />
     <import index="e5vs" ref="498d89d2-c2e9-11e2-ad49-6cf049e62fe5/java:org.jetbrains.ide(MPS.IDEA/)" />
@@ -315,6 +316,7 @@
         <child id="8276990574895933173" name="catchBody" index="1zc67A" />
         <child id="8276990574895933172" name="throwable" index="1zc67B" />
       </concept>
+      <concept id="7024111702304501418" name="jetbrains.mps.baseLanguage.structure.AndAssignmentExpression" flags="nn" index="3vZ8ra" />
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
       <concept id="1081855346303" name="jetbrains.mps.baseLanguage.structure.BreakStatement" flags="nn" index="3zACq4" />
       <concept id="1184950988562" name="jetbrains.mps.baseLanguage.structure.ArrayCreator" flags="nn" index="3$_iS1">
@@ -393,6 +395,10 @@
       <concept id="4079382982702596667" name="jetbrains.mps.baseLanguage.checkedDots.structure.CheckedDotExpression" flags="nn" index="2EnYce" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="1235746970280" name="jetbrains.mps.baseLanguage.closures.structure.CompactInvokeFunctionExpression" flags="nn" index="2Sg_IR">
+        <child id="1235746996653" name="function" index="2SgG2M" />
+        <child id="1235747002942" name="parameter" index="2SgHGx" />
+      </concept>
       <concept id="1199542442495" name="jetbrains.mps.baseLanguage.closures.structure.FunctionType" flags="in" index="1ajhzC">
         <child id="1199542457201" name="resultType" index="1ajl9A" />
         <child id="1199542501692" name="parameterType" index="1ajw0F" />
@@ -427,6 +433,8 @@
       <concept id="1177026924588" name="jetbrains.mps.lang.smodel.structure.RefConcept_Reference" flags="nn" index="chp4Y">
         <reference id="1177026940964" name="conceptDeclaration" index="cht4Q" />
       </concept>
+      <concept id="7236635212850979475" name="jetbrains.mps.lang.smodel.structure.Node_HasNextSiblingOperation" flags="nn" index="rvlfL" />
+      <concept id="8432949284911505116" name="jetbrains.mps.lang.smodel.structure.Node_HasPrevSiblingOperation" flags="nn" index="2t3KhH" />
       <concept id="7453996997717780434" name="jetbrains.mps.lang.smodel.structure.Node_GetSConceptOperation" flags="nn" index="2yIwOk" />
       <concept id="1173122760281" name="jetbrains.mps.lang.smodel.structure.Node_GetAncestorsOperation" flags="nn" index="z$bX8" />
       <concept id="2396822768958367367" name="jetbrains.mps.lang.smodel.structure.AbstractTypeCastExpression" flags="nn" index="$5XWr">
@@ -444,6 +452,8 @@
       <concept id="1966870290088668512" name="jetbrains.mps.lang.smodel.structure.Enum_MemberLiteral" flags="ng" index="2ViDtV">
         <reference id="1966870290088668516" name="memberDeclaration" index="2ViDtZ" />
       </concept>
+      <concept id="1143511969223" name="jetbrains.mps.lang.smodel.structure.Node_GetPrevSiblingOperation" flags="nn" index="YBYNd" />
+      <concept id="1143512015885" name="jetbrains.mps.lang.smodel.structure.Node_GetNextSiblingOperation" flags="nn" index="YCak7" />
       <concept id="1180031783296" name="jetbrains.mps.lang.smodel.structure.Concept_IsSubConceptOfOperation" flags="nn" index="2Zo12i">
         <child id="1180031783297" name="conceptArgument" index="2Zo12j" />
       </concept>
@@ -569,6 +579,8 @@
         <child id="9042586985346099735" name="input" index="1_o_bz" />
       </concept>
       <concept id="9042586985346099736" name="jetbrains.mps.baseLanguage.collections.structure.MultiForEachVariable" flags="ng" index="1_o_bG" />
+      <concept id="1240824834947" name="jetbrains.mps.baseLanguage.collections.structure.ValueAccessOperation" flags="nn" index="3AV6Ez" />
+      <concept id="1240825616499" name="jetbrains.mps.baseLanguage.collections.structure.KeyAccessOperation" flags="nn" index="3AY5_j" />
       <concept id="1197932370469" name="jetbrains.mps.baseLanguage.collections.structure.MapElement" flags="nn" index="3EllGN">
         <child id="1197932505799" name="map" index="3ElQJh" />
         <child id="1197932525128" name="key" index="3ElVtu" />
@@ -2046,30 +2058,38 @@
             </node>
           </node>
         </node>
-        <node concept="3clFbF" id="5PYr1ZdR3uk" role="3cqZAp">
-          <node concept="2OqwBi" id="5PYr1ZdRu3c" role="3clFbG">
-            <node concept="2ShNRf" id="5PYr1ZdR3ug" role="2Oq$k0">
-              <node concept="1pGfFk" id="5PYr1ZdRsNB" role="2ShVmc">
+        <node concept="3cpWs8" id="WOxe9P_LWU" role="3cqZAp">
+          <node concept="3cpWsn" id="WOxe9P_LWV" role="3cpWs9">
+            <property role="TrG5h" value="finalizer" />
+            <node concept="3uibUv" id="WOxe9P_uS2" role="1tU5fm">
+              <ref role="3uigEE" to="6dpw:RywcYwuy3f" resolve="GridFinalizer" />
+            </node>
+            <node concept="2ShNRf" id="WOxe9P_LWW" role="33vP2m">
+              <node concept="1pGfFk" id="WOxe9P_LWX" role="2ShVmc">
                 <ref role="37wK5l" to="6dpw:RywcYwuy3n" resolve="GridFinalizer" />
-                <node concept="37vLTw" id="1cFYsK399Jm" role="37wK5m">
+                <node concept="37vLTw" id="WOxe9P_LWY" role="37wK5m">
                   <ref role="3cqZAo" node="7Nzu1Mc$SGa" resolve="myGrid" />
                 </node>
-                <node concept="2ShNRf" id="5PYr1ZdRsPG" role="37wK5m">
-                  <node concept="1pGfFk" id="5PYr1ZdRtXN" role="2ShVmc">
+                <node concept="2ShNRf" id="WOxe9P_LWZ" role="37wK5m">
+                  <node concept="1pGfFk" id="WOxe9P_LX0" role="2ShVmc">
                     <ref role="37wK5l" to="6dpw:RywcYwuxY7" resolve="EditorCellFactory" />
-                    <node concept="1rXfSq" id="1MCPN0ioPPd" role="37wK5m">
+                    <node concept="1rXfSq" id="WOxe9P_LX1" role="37wK5m">
                       <ref role="37wK5l" to="g51k:~EditorCell_Basic.getContext()" resolve="getContext" />
                     </node>
-                    <node concept="1rXfSq" id="1MCPN0ioQ2t" role="37wK5m">
+                    <node concept="1rXfSq" id="WOxe9P_LX2" role="37wK5m">
                       <ref role="37wK5l" to="g51k:~EditorCell_Basic.getSNode()" resolve="getSNode" />
                     </node>
-                    <node concept="37vLTw" id="2c3czgq38bP" role="37wK5m">
+                    <node concept="37vLTw" id="WOxe9P_LX3" role="37wK5m">
                       <ref role="3cqZAo" node="7Nzu1Mc$SGa" resolve="myGrid" />
                     </node>
                   </node>
                 </node>
               </node>
             </node>
+          </node>
+        </node>
+        <node concept="3clFbF" id="5PYr1ZdR3uk" role="3cqZAp">
+          <node concept="2OqwBi" id="5PYr1ZdRu3c" role="3clFbG">
             <node concept="liA8E" id="5PYr1ZdRuW2" role="2OqNvi">
               <ref role="37wK5l" to="6dpw:RywcYwuy3C" resolve="finalizeGrid" />
               <node concept="37vLTw" id="m_yL2MIu52" role="37wK5m">
@@ -2079,6 +2099,9 @@
                 <ref role="3cqZAo" node="m_yL2MIoz_" resolve="myDisableRightRowEndCells" />
               </node>
             </node>
+            <node concept="37vLTw" id="WOxe9P_LX4" role="2Oq$k0">
+              <ref role="3cqZAo" node="WOxe9P_LWV" resolve="finalizer" />
+            </node>
           </node>
         </node>
         <node concept="3clFbJ" id="5ivXze3eGwK" role="3cqZAp">
@@ -2121,6 +2144,17 @@
                 </node>
               </node>
             </node>
+            <node concept="3clFbF" id="WOxe9PAtvP" role="3cqZAp">
+              <node concept="2OqwBi" id="WOxe9PAvOy" role="3clFbG">
+                <node concept="37vLTw" id="WOxe9PAtvN" role="2Oq$k0">
+                  <ref role="3cqZAo" node="WOxe9P_LWV" resolve="finalizer" />
+                </node>
+                <node concept="liA8E" id="WOxe9PA$Ht" role="2OqNvi">
+                  <ref role="37wK5l" to="6dpw:3GKqtdr6d3H" resolve="finalizeEditorCellLeafs" />
+                </node>
+              </node>
+            </node>
+            <node concept="3clFbH" id="WOxe9PA0dC" role="3cqZAp" />
             <node concept="1Dw8fO" id="5ivXze3hCeN" role="3cqZAp">
               <node concept="3clFbS" id="5ivXze3hCeO" role="2LFqv$">
                 <node concept="1Dw8fO" id="5ivXze3hCeP" role="3cqZAp">
@@ -14246,8 +14280,8 @@
                         <node concept="liA8E" id="7VuKdVa5Us_" role="2OqNvi">
                           <ref role="37wK5l" to="z60i:~Graphics.setColor(java.awt.Color)" resolve="setColor" />
                           <node concept="10M0yZ" id="7VuKdVa7FRR" role="37wK5m">
-                            <ref role="3cqZAo" to="lzb2:~JBColor.lightGray" resolve="lightGray" />
                             <ref role="1PxDUh" to="lzb2:~JBColor" resolve="JBColor" />
+                            <ref role="3cqZAo" to="lzb2:~JBColor.lightGray" resolve="lightGray" />
                           </node>
                         </node>
                       </node>
@@ -16973,13 +17007,13 @@
         </node>
         <node concept="3clFbF" id="1362cT3iaI5" role="3cqZAp">
           <node concept="2OqwBi" id="1362cT3ibbW" role="3clFbG">
+            <node concept="37vLTw" id="7N9Z2vLQ7Kr" role="2Oq$k0">
+              <ref role="3cqZAo" node="7N9Z2vLQ7Kp" resolve="instance" />
+            </node>
             <node concept="liA8E" id="1362cT3ibyX" role="2OqNvi">
               <ref role="37wK5l" node="1362cT3cM2o" resolve="registerChild" />
               <node concept="Xjq3P" id="1362cT3ib$7" role="37wK5m" />
             </node>
-            <node concept="37vLTw" id="7N9Z2vLQ7Kr" role="2Oq$k0">
-              <ref role="3cqZAo" node="7N9Z2vLQ7Kp" resolve="instance" />
-            </node>
           </node>
         </node>
         <node concept="3cpWs8" id="20OswHDM4Be" role="3cqZAp">
@@ -30012,127 +30046,6 @@
             </node>
           </node>
         </node>
-        <node concept="3cpWs8" id="4fVtJFvllvE" role="3cqZAp">
-          <node concept="3cpWsn" id="4fVtJFvllvF" role="3cpWs9">
-            <property role="TrG5h" value="insertRowAction" />
-            <node concept="3uibUv" id="4fVtJFvlkow" role="1tU5fm">
-              <ref role="3uigEE" node="4db20qfqg3Y" resolve="TableActions.InsertRowAction" />
-            </node>
-            <node concept="2ShNRf" id="4fVtJFvllvG" role="33vP2m">
-              <node concept="1pGfFk" id="4fVtJFvllvH" role="2ShVmc">
-                <ref role="37wK5l" node="7IUya7cfM4j" resolve="TableActions.InsertRowAction" />
-                <node concept="Xjq3P" id="4fVtJFvllvI" role="37wK5m" />
-                <node concept="37vLTw" id="4fVtJFvllvJ" role="37wK5m">
-                  <ref role="3cqZAo" node="12WeXpXn$48" resolve="myLeftEnd" />
-                </node>
-              </node>
-            </node>
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-            <node concept="2ShNRf" id="40oIQyHKQhe" role="37wK5m">
-              <node concept="1pGfFk" id="7IUya7ciW44" role="2ShVmc">
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-              <ref role="Rm8GQ" to="f4zo:~CellActionType.SELECT_NEXT" resolve="SELECT_NEXT" />
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-              <node concept="1pGfFk" id="7IUya7ciZ9l" role="2ShVmc">
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-            </node>
-            <node concept="2ShNRf" id="5AW5JoZbKKJ" role="37wK5m">
-              <node concept="1pGfFk" id="7IUya7cj15Z" role="2ShVmc">
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-            <node concept="Rm8GO" id="5AW5JoZAbGL" role="37wK5m">
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-            <node concept="2ShNRf" id="5AW5JoZAbPx" role="37wK5m">
-              <node concept="1pGfFk" id="7IUya7cj32B" role="2ShVmc">
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-                <node concept="Xjq3P" id="7IUya7cj32A" role="37wK5m" />
-                <node concept="37vLTw" id="7IUya7cj6aN" role="37wK5m">
-                  <ref role="3cqZAo" node="12WeXpXn$48" resolve="myLeftEnd" />
-                </node>
-              </node>
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           <node concept="1PaTwC" id="7WTFIQIcYlg" role="1aUNEU">
@@ -30180,7 +30093,6 @@
             </node>
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         </node>
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             <node concept="2YIFZM" id="1MCPN0iswVR" role="2Oq$k0">
@@ -30209,6 +30121,74 @@
         <node concept="10P_77" id="12WeXpXnAMO" role="1tU5fm" />
       </node>
     </node>
+    <node concept="2tJIrI" id="74LepNTjAl7" role="jymVt" />
+    <node concept="3clFb_" id="74LepNTjFG7" role="jymVt">
+      <property role="TrG5h" value="isLeft" />
+      <node concept="3clFbS" id="74LepNTjFGa" role="3clF47">
+        <node concept="3clFbF" id="74LepNTjGPn" role="3cqZAp">
+          <node concept="37vLTw" id="74LepNTjGPm" role="3clFbG">
+            <ref role="3cqZAo" node="12WeXpXn$48" resolve="myLeftEnd" />
+          </node>
+        </node>
+      </node>
+      <node concept="3Tm1VV" id="74LepNTjD2F" role="1B3o_S" />
+      <node concept="10P_77" id="74LepNTjK_y" role="3clF45" />
+    </node>
+    <node concept="2tJIrI" id="74LepNSZguP" role="jymVt" />
+    <node concept="3clFb_" id="74LepNSZlQy" role="jymVt">
+      <property role="TrG5h" value="initializeActions" />
+      <node concept="3clFbS" id="74LepNSZlQ_" role="3clF47">
+        <node concept="2Gpval" id="74LepNT7TvR" role="3cqZAp">
+          <node concept="2GrKxI" id="74LepNT7TvT" role="2Gsz3X">
+            <property role="TrG5h" value="entry" />
+          </node>
+          <node concept="3clFbS" id="74LepNT7TvX" role="2LFqv$">
+            <node concept="3clFbF" id="74LepNT7Ygs" role="3cqZAp">
+              <node concept="2OqwBi" id="74LepNT7Zf_" role="3clFbG">
+                <node concept="Xjq3P" id="74LepNT7Ygr" role="2Oq$k0" />
+                <node concept="liA8E" id="74LepNT80yG" role="2OqNvi">
+                  <ref role="37wK5l" to="g51k:~EditorCell_Basic.setAction(jetbrains.mps.openapi.editor.cells.CellActionType,jetbrains.mps.openapi.editor.cells.CellAction)" resolve="setAction" />
+                  <node concept="2OqwBi" id="74LepNT834Q" role="37wK5m">
+                    <node concept="2GrUjf" id="74LepNT82oh" role="2Oq$k0">
+                      <ref role="2Gs0qQ" node="74LepNT7TvT" resolve="entry" />
+                    </node>
+                    <node concept="3AY5_j" id="74LepNT84m6" role="2OqNvi" />
+                  </node>
+                  <node concept="2Sg_IR" id="74LepNT8aaF" role="37wK5m">
+                    <node concept="2OqwBi" id="74LepNT8aaG" role="2SgG2M">
+                      <node concept="2GrUjf" id="74LepNT8aaH" role="2Oq$k0">
+                        <ref role="2Gs0qQ" node="74LepNT7TvT" resolve="entry" />
+                      </node>
+                      <node concept="3AV6Ez" id="74LepNT8aaI" role="2OqNvi" />
+                    </node>
+                    <node concept="Xjq3P" id="74LepNT8czM" role="2SgHGx" />
+                    <node concept="37vLTw" id="74LepNT8eKX" role="2SgHGx">
+                      <ref role="3cqZAo" node="12WeXpXn$48" resolve="myLeftEnd" />
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+          <node concept="2OqwBi" id="74LepNT7$hU" role="2GsD0m">
+            <node concept="37vLTw" id="74LepNT7yzC" role="2Oq$k0">
+              <ref role="3cqZAo" node="74LepNSZmKi" resolve="grid" />
+            </node>
+            <node concept="liA8E" id="74LepNT7_lW" role="2OqNvi">
+              <ref role="37wK5l" to="6dpw:74LepNT56X5" resolve="getEndCellActionsCreator" />
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="3Tm1VV" id="74LepNSZk8V" role="1B3o_S" />
+      <node concept="3cqZAl" id="74LepNSZlpT" role="3clF45" />
+      <node concept="37vLTG" id="74LepNSZmKi" role="3clF46">
+        <property role="TrG5h" value="grid" />
+        <node concept="3uibUv" id="74LepNSZmKh" role="1tU5fm">
+          <ref role="3uigEE" to="6dpw:7C0FR5Aonzr" resolve="Grid" />
+        </node>
+      </node>
+    </node>
     <node concept="2tJIrI" id="6FVoyDw084V" role="jymVt" />
     <node concept="3clFb_" id="2vJRo8glBBB" role="jymVt">
       <property role="1EzhhJ" value="false" />
@@ -36310,28 +36290,22 @@
           <ref role="3uigEE" to="f4zo:~EditorCell" resolve="EditorCell" />
         </node>
       </node>
-      <node concept="312cEg" id="4fVtJFvksQ0" role="jymVt">
-        <property role="TrG5h" value="overwriteAllowedAction" />
-        <node concept="3Tm6S6" id="4fVtJFvkq2v" role="1B3o_S" />
-        <node concept="10P_77" id="4fVtJFvks6I" role="1tU5fm" />
-        <node concept="3clFbT" id="4fVtJFvkv6P" role="33vP2m" />
+      <node concept="312cEg" id="63uETA6nZY4" role="jymVt">
+        <property role="TrG5h" value="triggeredFromMPSAction" />
+        <node concept="3Tm6S6" id="63uETA6nWZH" role="1B3o_S" />
+        <node concept="3clFbT" id="63uETA6o42r" role="33vP2m" />
+        <node concept="10P_77" id="63uETA6o2EK" role="1tU5fm" />
       </node>
       <node concept="2tJIrI" id="7IUya7chv3U" role="jymVt" />
       <node concept="3clFbW" id="7IUya7chrcn" role="jymVt">
         <node concept="3cqZAl" id="7IUya7chrco" role="3clF45" />
         <node concept="3clFbS" id="7IUya7chrcq" role="3clF47">
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-            <node concept="37vLTI" id="7IUya7chUyd" role="3clFbG">
-              <node concept="37vLTw" id="7IUya7chV3A" role="37vLTx">
-                <ref role="3cqZAo" node="7IUya7chsvz" resolve="cell" />
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-              <node concept="2OqwBi" id="7IUya7chTh0" role="37vLTJ">
-                <node concept="Xjq3P" id="7IUya7chT8h" role="2Oq$k0" />
-                <node concept="2OwXpG" id="7IUya7chTZS" role="2OqNvi">
-                  <ref role="2Oxat5" node="7IUya7chwf5" resolve="cell" />
-                </node>
-              </node>
+          <node concept="1VxSAg" id="63uETA6pcBo" role="3cqZAp">
+            <ref role="37wK5l" node="63uETA6oZFl" resolve="TableActions.AbstractTableCellAction" />
+            <node concept="37vLTw" id="63uETA6pdWa" role="37wK5m">
+              <ref role="3cqZAo" node="7IUya7chsvz" resolve="cell" />
             </node>
+            <node concept="3clFbT" id="63uETA6pfpv" role="37wK5m" />
           </node>
         </node>
         <node concept="3Tm1VV" id="7IUya7chrcr" role="1B3o_S" />
@@ -36342,6 +36316,49 @@
           </node>
         </node>
       </node>
+      <node concept="2tJIrI" id="63uETA6oZzL" role="jymVt" />
+      <node concept="3clFbW" id="63uETA6oZFl" role="jymVt">
+        <node concept="3cqZAl" id="63uETA6oZFm" role="3clF45" />
+        <node concept="3clFbS" id="63uETA6oZFn" role="3clF47">
+          <node concept="3clFbF" id="63uETA6oZFo" role="3cqZAp">
+            <node concept="37vLTI" id="63uETA6oZFp" role="3clFbG">
+              <node concept="37vLTw" id="63uETA6oZFq" role="37vLTx">
+                <ref role="3cqZAo" node="63uETA6oZFv" resolve="cell" />
+              </node>
+              <node concept="2OqwBi" id="63uETA6oZFr" role="37vLTJ">
+                <node concept="Xjq3P" id="63uETA6oZFs" role="2Oq$k0" />
+                <node concept="2OwXpG" id="63uETA6oZFt" role="2OqNvi">
+                  <ref role="2Oxat5" node="7IUya7chwf5" resolve="cell" />
+                </node>
+              </node>
+            </node>
+          </node>
+          <node concept="3clFbF" id="63uETA6p7oj" role="3cqZAp">
+            <node concept="37vLTI" id="63uETA6p9Su" role="3clFbG">
+              <node concept="37vLTw" id="63uETA6paLH" role="37vLTx">
+                <ref role="3cqZAo" node="63uETA6p1wF" resolve="triggeredFromMPSAction" />
+              </node>
+              <node concept="2OqwBi" id="63uETA6p7BW" role="37vLTJ">
+                <node concept="Xjq3P" id="63uETA6p7oh" role="2Oq$k0" />
+                <node concept="2OwXpG" id="63uETA6p8FB" role="2OqNvi">
+                  <ref role="2Oxat5" node="63uETA6nZY4" resolve="triggeredFromMPSAction" />
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="3Tm1VV" id="63uETA6oZFu" role="1B3o_S" />
+        <node concept="37vLTG" id="63uETA6oZFv" role="3clF46">
+          <property role="TrG5h" value="cell" />
+          <node concept="3uibUv" id="63uETA6oZFw" role="1tU5fm">
+            <ref role="3uigEE" to="f4zo:~EditorCell" resolve="EditorCell" />
+          </node>
+        </node>
+        <node concept="37vLTG" id="63uETA6p1wF" role="3clF46">
+          <property role="TrG5h" value="triggeredFromMPSAction" />
+          <node concept="10P_77" id="63uETA6p2Lh" role="1tU5fm" />
+        </node>
+      </node>
       <node concept="2tJIrI" id="56WqtlUimuh" role="jymVt" />
       <node concept="3clFb_" id="56WqtlUiwfR" role="jymVt">
         <property role="TrG5h" value="getActionType" />
@@ -36353,31 +36370,6 @@
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       </node>
       <node concept="2tJIrI" id="7IUya7chGH_" role="jymVt" />
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-        <property role="TrG5h" value="overwriteAllowedAction" />
-        <node concept="3clFbS" id="4fVtJFvk_d9" role="3clF47">
-          <node concept="3clFbF" id="4fVtJFvkE47" role="3cqZAp">
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-              <node concept="37vLTw" id="4fVtJFvkKfw" role="37vLTx">
-                <ref role="3cqZAo" node="4fVtJFvkBoK" resolve="flag" />
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-              <node concept="2OqwBi" id="4fVtJFvkF5Q" role="37vLTJ">
-                <node concept="Xjq3P" id="4fVtJFvkE46" role="2Oq$k0" />
-                <node concept="2OwXpG" id="4fVtJFvkGOg" role="2OqNvi">
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-        <node concept="3Tm1VV" id="4fVtJFvky_r" role="1B3o_S" />
-        <node concept="3cqZAl" id="4fVtJFvk$tO" role="3clF45" />
-        <node concept="37vLTG" id="4fVtJFvkBoK" role="3clF46">
-          <property role="TrG5h" value="flag" />
-          <node concept="10P_77" id="4fVtJFvkBoJ" role="1tU5fm" />
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       <node concept="3clFb_" id="7IUya7cczGL" role="jymVt">
         <property role="TrG5h" value="getGridCell" />
         <node concept="3clFbS" id="7IUya7cczGO" role="3clF47">
@@ -36519,72 +36511,76 @@
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           <node concept="3clFbH" id="56WqtlUjJ_t" role="3cqZAp" />
-          <node concept="3clFbJ" id="4fVtJFvkPjj" role="3cqZAp">
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-                <node concept="3clFbS" id="4fVtJFvkXvg" role="3clFbx">
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-                    <node concept="3clFbT" id="4fVtJFvl1T$" role="3cqZAk">
-                      <property role="3clFbU" value="true" />
-                    </node>
+          <node concept="3cpWs8" id="63uETA6o82O" role="3cqZAp">
+            <node concept="3cpWsn" id="63uETA6o82R" role="3cpWs9">
+              <property role="TrG5h" value="cond" />
+              <node concept="10P_77" id="63uETA6o82M" role="1tU5fm" />
+              <node concept="1Wc70l" id="63uETA6ogBA" role="33vP2m">
+                <node concept="3y3z36" id="63uETA6ogBB" role="3uHU7B">
+                  <node concept="37vLTw" id="63uETA6ogBC" role="3uHU7B">
+                    <ref role="3cqZAo" node="1Q$LIXOlMF0" resolve="gridCell" />
                   </node>
+                  <node concept="10Nm6u" id="63uETA6ogBD" role="3uHU7w" />
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+                <node concept="3y3z36" id="63uETA6ogBE" role="3uHU7w">
+                  <node concept="2YIFZM" id="63uETA6ogBF" role="3uHU7B">
+                    <ref role="1Pybhc" node="6tOcB$JKlIC" resolve="TableUtils" />
+                    <ref role="37wK5l" node="7IUya7c4DQS" resolve="getNodeOfRowNode" />
+                    <node concept="37vLTw" id="63uETA6ogBG" role="37wK5m">
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-                      <ref role="37wK5l" node="7DPEkiwNldl" resolve="rowUIActionsAllowed" />
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+          </node>
+          <node concept="3clFbH" id="63uETA6oifz" role="3cqZAp" />
+          <node concept="3clFbJ" id="63uETA6olUg" role="3cqZAp">
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+              <node concept="3clFbF" id="63uETA6ot30" role="3cqZAp">
+                <node concept="3vZ8ra" id="63uETA6ov8B" role="3clFbG">
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+                      <node concept="37vLTw" id="63uETA6oI0m" role="2Oq$k0">
+                        <ref role="3cqZAo" node="7DPEkiwPE2i" resolve="tableEditor" />
+                      </node>
+                      <node concept="liA8E" id="63uETA6oMV8" role="2OqNvi">
+                        <ref role="37wK5l" node="56WqtlUhvIO" resolve="columnUIActionsAllowed" />
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                     </node>
-                  </node>
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-                      <ref role="37wK5l" node="56WqtlUiwfR" resolve="getActionType" />
+                    <node concept="2OqwBi" id="63uETA6oTjj" role="3K4GZi">
+                      <node concept="37vLTw" id="63uETA6oOJm" role="2Oq$k0">
+                        <ref role="3cqZAo" node="7DPEkiwPE2i" resolve="tableEditor" />
+                      </node>
+                      <node concept="liA8E" id="63uETA6oWa7" role="2OqNvi">
+                        <ref role="37wK5l" node="7DPEkiwNldl" resolve="rowUIActionsAllowed" />
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                     </node>
-                    <node concept="Rm8GO" id="56WqtlUjcxL" role="3uHU7w">
-                      <ref role="Rm8GQ" node="56WqtlUilBp" resolve="COLUMN" />
-                      <ref role="1Px2BO" node="56WqtlUi2XZ" resolve="TableActions.TableActionType" />
+                    <node concept="3clFbC" id="63uETA6ozFK" role="3K4Cdx">
+                      <node concept="Rm8GO" id="63uETA6oE9S" role="3uHU7w">
+                        <ref role="Rm8GQ" node="56WqtlUilBp" resolve="COLUMN" />
+                        <ref role="1Px2BO" node="56WqtlUi2XZ" resolve="TableActions.TableActionType" />
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+                      <node concept="1rXfSq" id="63uETA6oxA6" role="3uHU7B">
+                        <ref role="37wK5l" node="56WqtlUiwfR" resolve="getActionType" />
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                     </node>
                   </node>
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-                      <ref role="37wK5l" node="56WqtlUhvIO" resolve="columnUIActionsAllowed" />
-                    </node>
+                  <node concept="37vLTw" id="63uETA6ot2Y" role="37vLTJ">
+                    <ref role="3cqZAo" node="63uETA6o82R" resolve="cond" />
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-              <node concept="3y3z36" id="7IUya7cjjjU" role="3uHU7B">
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-                <node concept="2YIFZM" id="1Q$LIXOlHmp" role="3uHU7B">
-                  <ref role="1Pybhc" node="6tOcB$JKlIC" resolve="TableUtils" />
-                  <ref role="37wK5l" node="7IUya7c4DQS" resolve="getNodeOfRowNode" />
-                  <node concept="37vLTw" id="1Q$LIXOlMF3" role="37wK5m">
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-                  </node>
-                </node>
-                <node concept="10Nm6u" id="1Q$LIXOlIvs" role="3uHU7w" />
-              </node>
+            <node concept="37vLTw" id="63uETA6onLn" role="3clFbw">
+              <ref role="3cqZAo" node="63uETA6nZY4" resolve="triggeredFromMPSAction" />
             </node>
           </node>
-          <node concept="3cpWs6" id="4fVtJFvleKf" role="3cqZAp">
-            <node concept="3clFbT" id="4fVtJFvlfoA" role="3cqZAk" />
+          <node concept="3clFbF" id="7IUya7cjhEe" role="3cqZAp">
+            <node concept="37vLTw" id="63uETA6odpi" role="3clFbG">
+              <ref role="3cqZAo" node="63uETA6o82R" resolve="cond" />
+            </node>
           </node>
         </node>
         <node concept="2AHcQZ" id="7IUya7cjexm" role="2AJF6D">
@@ -36620,20 +36616,54 @@
           <node concept="10P_77" id="6R0q0mZqeom" role="1tU5fm" />
         </node>
         <node concept="3clFbS" id="6R0q0mZq1Z9" role="3clF47">
-          <node concept="XkiVB" id="6R0q0mZq1Za" role="3cqZAp">
-            <ref role="37wK5l" node="7IUya7chrcn" resolve="TableActions.AbstractTableCellAction" />
-            <node concept="37vLTw" id="6R0q0mZq1Zb" role="37wK5m">
+          <node concept="1VxSAg" id="63uETA6pGK9" role="3cqZAp">
+            <ref role="37wK5l" node="63uETA6pydb" resolve="TableActions.InsertColumnAction" />
+            <node concept="37vLTw" id="63uETA6pHyK" role="37wK5m">
               <ref role="3cqZAo" node="6R0q0mZq1Z7" resolve="cell" />
             </node>
+            <node concept="37vLTw" id="63uETA6pIIB" role="37wK5m">
+              <ref role="3cqZAo" node="6R0q0mZqdQX" resolve="before" />
+            </node>
+            <node concept="3clFbT" id="63uETA6pJN9" role="37wK5m" />
+          </node>
+        </node>
+      </node>
+      <node concept="2tJIrI" id="63uETA6p_Eo" role="jymVt" />
+      <node concept="3clFbW" id="63uETA6pydb" role="jymVt">
+        <node concept="3cqZAl" id="63uETA6pydc" role="3clF45" />
+        <node concept="3Tm1VV" id="63uETA6pydd" role="1B3o_S" />
+        <node concept="37vLTG" id="63uETA6pyde" role="3clF46">
+          <property role="TrG5h" value="cell" />
+          <node concept="3uibUv" id="63uETA6pydf" role="1tU5fm">
+            <ref role="3uigEE" to="f4zo:~EditorCell" resolve="EditorCell" />
+          </node>
+        </node>
+        <node concept="37vLTG" id="63uETA6pydg" role="3clF46">
+          <property role="TrG5h" value="before" />
+          <node concept="10P_77" id="63uETA6pydh" role="1tU5fm" />
+        </node>
+        <node concept="37vLTG" id="63uETA6pD77" role="3clF46">
+          <property role="TrG5h" value="triggeredFromMPSAction" />
+          <node concept="10P_77" id="63uETA6pE6B" role="1tU5fm" />
+        </node>
+        <node concept="3clFbS" id="63uETA6pydi" role="3clF47">
+          <node concept="XkiVB" id="63uETA6pydj" role="3cqZAp">
+            <ref role="37wK5l" node="63uETA6oZFl" resolve="TableActions.AbstractTableCellAction" />
+            <node concept="37vLTw" id="63uETA6pydk" role="37wK5m">
+              <ref role="3cqZAo" node="63uETA6pyde" resolve="cell" />
+            </node>
+            <node concept="37vLTw" id="63uETA6pM04" role="37wK5m">
+              <ref role="3cqZAo" node="63uETA6pD77" resolve="triggeredFromMPSAction" />
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           </node>
-          <node concept="3clFbF" id="6R0q0mZqf6R" role="3cqZAp">
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-                <ref role="3cqZAo" node="6R0q0mZqdQX" resolve="before" />
+          <node concept="3clFbF" id="63uETA6pydl" role="3cqZAp">
+            <node concept="37vLTI" id="63uETA6pydm" role="3clFbG">
+              <node concept="37vLTw" id="63uETA6pydn" role="37vLTx">
+                <ref role="3cqZAo" node="63uETA6pydg" resolve="before" />
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-              <node concept="2OqwBi" id="6R0q0mZqfhQ" role="37vLTJ">
-                <node concept="Xjq3P" id="6R0q0mZqf6P" role="2Oq$k0" />
-                <node concept="2OwXpG" id="6R0q0mZqfAb" role="2OqNvi">
+              <node concept="2OqwBi" id="63uETA6pydo" role="37vLTJ">
+                <node concept="Xjq3P" id="63uETA6pydp" role="2Oq$k0" />
+                <node concept="2OwXpG" id="63uETA6pydq" role="2OqNvi">
                   <ref role="2Oxat5" node="6R0q0mZqdnT" resolve="before" />
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@@ -36971,24 +37001,15 @@
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         <node concept="3cqZAl" id="7IUya7cfM4k" role="3clF45" />
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-            <node concept="37vLTw" id="7IUya7chZ4v" role="37wK5m">
+          <node concept="1VxSAg" id="63uETA6pTrb" role="3cqZAp">
+            <ref role="37wK5l" node="63uETA6pMka" resolve="TableActions.InsertRowAction" />
+            <node concept="37vLTw" id="63uETA6pTZh" role="37wK5m">
               <ref role="3cqZAo" node="7IUya7cfRzt" resolve="cell" />
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-                  <ref role="2Oxat5" node="7IUya7cfP4l" resolve="before" />
-                </node>
-              </node>
+            <node concept="37vLTw" id="63uETA6pUZb" role="37wK5m">
+              <ref role="3cqZAo" node="7IUya7cfN09" resolve="before" />
             </node>
+            <node concept="3clFbT" id="63uETA6pVBw" role="37wK5m" />
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         </node>
         <node concept="3Tm1VV" id="7IUya7cfM4n" role="1B3o_S" />
@@ -37003,6 +37024,49 @@
           <node concept="10P_77" id="7IUya7cfN08" role="1tU5fm" />
         </node>
       </node>
+      <node concept="2tJIrI" id="63uETA6pPfd" role="jymVt" />
+      <node concept="3clFbW" id="63uETA6pMka" role="jymVt">
+        <node concept="3cqZAl" id="63uETA6pMkb" role="3clF45" />
+        <node concept="3clFbS" id="63uETA6pMkc" role="3clF47">
+          <node concept="XkiVB" id="63uETA6pMkd" role="3cqZAp">
+            <ref role="37wK5l" node="63uETA6oZFl" resolve="TableActions.AbstractTableCellAction" />
+            <node concept="37vLTw" id="63uETA6pMke" role="37wK5m">
+              <ref role="3cqZAo" node="63uETA6pMkm" resolve="cell" />
+            </node>
+            <node concept="37vLTw" id="63uETA6pX$k" role="37wK5m">
+              <ref role="3cqZAo" node="63uETA6pQUq" resolve="triggeredFromMPSAction" />
+            </node>
+          </node>
+          <node concept="3clFbF" id="63uETA6pMkf" role="3cqZAp">
+            <node concept="37vLTI" id="63uETA6pMkg" role="3clFbG">
+              <node concept="37vLTw" id="63uETA6pMkh" role="37vLTx">
+                <ref role="3cqZAo" node="63uETA6pMko" resolve="before" />
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+              <node concept="2OqwBi" id="63uETA6pMki" role="37vLTJ">
+                <node concept="Xjq3P" id="63uETA6pMkj" role="2Oq$k0" />
+                <node concept="2OwXpG" id="63uETA6pMkk" role="2OqNvi">
+                  <ref role="2Oxat5" node="7IUya7cfP4l" resolve="before" />
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+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="3Tm1VV" id="63uETA6pMkl" role="1B3o_S" />
+        <node concept="37vLTG" id="63uETA6pMkm" role="3clF46">
+          <property role="TrG5h" value="cell" />
+          <node concept="3uibUv" id="63uETA6pMkn" role="1tU5fm">
+            <ref role="3uigEE" to="f4zo:~EditorCell" resolve="EditorCell" />
+          </node>
+        </node>
+        <node concept="37vLTG" id="63uETA6pMko" role="3clF46">
+          <property role="TrG5h" value="before" />
+          <node concept="10P_77" id="63uETA6pMkp" role="1tU5fm" />
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+        <node concept="37vLTG" id="63uETA6pQUq" role="3clF46">
+          <property role="TrG5h" value="triggeredFromMPSAction" />
+          <node concept="10P_77" id="63uETA6pQUr" role="1tU5fm" />
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       <node concept="2tJIrI" id="7IUya7cfHOe" role="jymVt" />
       <node concept="3clFb_" id="56WqtlUiFhh" role="jymVt">
         <property role="TrG5h" value="getActionType" />
@@ -37116,11 +37180,38 @@
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-            <node concept="37vLTw" id="7IUya7ciXQz" role="37wK5m">
+          <node concept="1VxSAg" id="63uETA6q9Z3" role="3cqZAp">
+            <ref role="37wK5l" node="63uETA6pZMy" resolve="TableActions.SelectRowNodeAction" />
+            <node concept="37vLTw" id="63uETA6qaCk" role="37wK5m">
               <ref role="3cqZAo" node="7IUya7ciXQv" resolve="cell" />
             </node>
+            <node concept="3clFbT" id="63uETA6qbz1" role="37wK5m" />
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+      </node>
+      <node concept="2tJIrI" id="63uETA6q2jw" role="jymVt" />
+      <node concept="3clFbW" id="63uETA6pZMy" role="jymVt">
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+        <node concept="37vLTG" id="63uETA6pZM_" role="3clF46">
+          <property role="TrG5h" value="cell" />
+          <node concept="3uibUv" id="63uETA6pZMA" role="1tU5fm">
+            <ref role="3uigEE" to="f4zo:~EditorCell" resolve="EditorCell" />
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+        </node>
+        <node concept="37vLTG" id="63uETA6q4fe" role="3clF46">
+          <property role="TrG5h" value="triggeredFromMPSAction" />
+          <node concept="10P_77" id="63uETA6q4ff" role="1tU5fm" />
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+        <node concept="3clFbS" id="63uETA6pZMB" role="3clF47">
+          <node concept="XkiVB" id="63uETA6pZMC" role="3cqZAp">
+            <ref role="37wK5l" node="63uETA6oZFl" resolve="TableActions.AbstractTableCellAction" />
+            <node concept="37vLTw" id="63uETA6pZMD" role="37wK5m">
+              <ref role="3cqZAo" node="63uETA6pZM_" resolve="cell" />
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+            <node concept="37vLTw" id="63uETA6q7bL" role="37wK5m">
+              <ref role="3cqZAo" node="63uETA6q4fe" resolve="triggeredFromMPSAction" />
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           </node>
         </node>
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@@ -37221,24 +37312,15 @@
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-            <node concept="37vLTw" id="7IUya7ciNyi" role="37wK5m">
+          <node concept="1VxSAg" id="63uETA6qm0p" role="3cqZAp">
+            <ref role="37wK5l" node="63uETA6qeaD" resolve="TableActions.PasteAction" />
+            <node concept="37vLTw" id="63uETA6qmDP" role="37wK5m">
               <ref role="3cqZAo" node="7IUya7ciKjU" resolve="cell" />
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-                  <ref role="2Oxat5" node="7IUya7ci_FD" resolve="leftSide" />
-                </node>
-              </node>
+            <node concept="37vLTw" id="63uETA6qn4G" role="37wK5m">
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@@ -37253,6 +37335,49 @@
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+          <node concept="XkiVB" id="63uETA6qeaG" role="3cqZAp">
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+              <ref role="3cqZAo" node="63uETA6qeaP" resolve="cell" />
+            </node>
+            <node concept="37vLTw" id="63uETA6qjXG" role="37wK5m">
+              <ref role="3cqZAo" node="63uETA6qgTQ" resolve="triggeredFromMPSAction" />
+            </node>
+          </node>
+          <node concept="3clFbF" id="63uETA6qeaI" role="3cqZAp">
+            <node concept="37vLTI" id="63uETA6qeaJ" role="3clFbG">
+              <node concept="37vLTw" id="63uETA6qeaK" role="37vLTx">
+                <ref role="3cqZAo" node="63uETA6qeaR" resolve="leftSide" />
+              </node>
+              <node concept="2OqwBi" id="63uETA6qeaL" role="37vLTJ">
+                <node concept="Xjq3P" id="63uETA6qeaM" role="2Oq$k0" />
+                <node concept="2OwXpG" id="63uETA6qeaN" role="2OqNvi">
+                  <ref role="2Oxat5" node="7IUya7ci_FD" resolve="leftSide" />
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="3Tm1VV" id="63uETA6qeaO" role="1B3o_S" />
+        <node concept="37vLTG" id="63uETA6qeaP" role="3clF46">
+          <property role="TrG5h" value="cell" />
+          <node concept="3uibUv" id="63uETA6qeaQ" role="1tU5fm">
+            <ref role="3uigEE" to="f4zo:~EditorCell" resolve="EditorCell" />
+          </node>
+        </node>
+        <node concept="37vLTG" id="63uETA6qeaR" role="3clF46">
+          <property role="TrG5h" value="leftSide" />
+          <node concept="10P_77" id="63uETA6qeaS" role="1tU5fm" />
+        </node>
+        <node concept="37vLTG" id="63uETA6qgTQ" role="3clF46">
+          <property role="TrG5h" value="triggeredFromMPSAction" />
+          <node concept="10P_77" id="63uETA6qgTR" role="1tU5fm" />
+        </node>
+      </node>
       <node concept="2tJIrI" id="7IUya7cimRi" role="jymVt" />
       <node concept="3clFb_" id="56WqtlUiK3y" role="jymVt">
         <property role="TrG5h" value="getActionType" />
@@ -37597,15 +37722,47 @@
     <node concept="2tJIrI" id="7IUya7cgFfk" role="jymVt" />
     <node concept="312cEu" id="40oIQyHH57G" role="jymVt">
       <property role="TrG5h" value="DeleteRowAction" />
-      <node concept="2tJIrI" id="7IUya7ciRZk" role="jymVt" />
+      <node concept="2tJIrI" id="74LepNT$UCg" role="jymVt" />
+      <node concept="Qs71p" id="74LepNTV$5n" role="jymVt">
+        <property role="TrG5h" value="DeleteType" />
+        <node concept="3Tm1VV" id="74LepNTVylk" role="1B3o_S" />
+        <node concept="QsSxf" id="74LepNTV_TU" role="Qtgdg">
+          <property role="TrG5h" value="BACKSPACE" />
+          <ref role="37wK5l" to="wyt6:~Object.&lt;init&gt;()" resolve="Object" />
+        </node>
+        <node concept="QsSxf" id="74LepNTVASM" role="Qtgdg">
+          <property role="TrG5h" value="DELETE" />
+          <ref role="37wK5l" to="wyt6:~Object.&lt;init&gt;()" resolve="Object" />
+        </node>
+      </node>
+      <node concept="2tJIrI" id="74LepNTVwyB" role="jymVt" />
+      <node concept="312cEg" id="74LepNTVL5V" role="jymVt">
+        <property role="TrG5h" value="deleteType" />
+        <node concept="3Tm6S6" id="74LepNTVDVG" role="1B3o_S" />
+        <node concept="3uibUv" id="74LepNTVL17" role="1tU5fm">
+          <ref role="3uigEE" node="74LepNTV$5n" resolve="TableActions.DeleteRowAction.DeleteType" />
+        </node>
+      </node>
+      <node concept="312cEg" id="74LepNTVST$" role="jymVt">
+        <property role="TrG5h" value="fromLeftSide" />
+        <node concept="3Tm6S6" id="74LepNTVRxb" role="1B3o_S" />
+        <node concept="10P_77" id="74LepNTVSQi" role="1tU5fm" />
+      </node>
+      <node concept="2tJIrI" id="74LepNT$Yv9" role="jymVt" />
       <node concept="3clFbW" id="7IUya7ciSfI" role="jymVt">
         <node concept="3cqZAl" id="7IUya7ciSfJ" role="3clF45" />
         <node concept="3clFbS" id="7IUya7ciSfL" role="3clF47">
-          <node concept="XkiVB" id="7IUya7ciSEJ" role="3cqZAp">
-            <ref role="37wK5l" node="7IUya7chrcn" resolve="TableActions.AbstractTableCellAction" />
-            <node concept="37vLTw" id="7IUya7ciTaX" role="37wK5m">
+          <node concept="1VxSAg" id="63uETA6qzxI" role="3cqZAp">
+            <ref role="37wK5l" node="63uETA6qqIK" resolve="TableActions.DeleteRowAction" />
+            <node concept="37vLTw" id="63uETA6qzHC" role="37wK5m">
               <ref role="3cqZAo" node="7IUya7ciSo5" resolve="cell" />
             </node>
+            <node concept="3clFbT" id="63uETA6q$tt" role="37wK5m" />
+            <node concept="Rm8GO" id="74LepNTVCkl" role="37wK5m">
+              <ref role="Rm8GQ" node="74LepNTV_TU" resolve="BACKSPACE" />
+              <ref role="1Px2BO" node="74LepNTV$5n" resolve="TableActions.DeleteRowAction.DeleteType" />
+            </node>
+            <node concept="3clFbT" id="74LepNTVV8n" role="37wK5m" />
           </node>
         </node>
         <node concept="3Tm1VV" id="7IUya7ciSfM" role="1B3o_S" />
@@ -37616,6 +37773,68 @@
           </node>
         </node>
       </node>
+      <node concept="2tJIrI" id="63uETA6qtgo" role="jymVt" />
+      <node concept="3clFbW" id="63uETA6qqIK" role="jymVt">
+        <node concept="3cqZAl" id="63uETA6qqIL" role="3clF45" />
+        <node concept="3clFbS" id="63uETA6qqIM" role="3clF47">
+          <node concept="XkiVB" id="63uETA6qqIN" role="3cqZAp">
+            <ref role="37wK5l" node="63uETA6oZFl" resolve="TableActions.AbstractTableCellAction" />
+            <node concept="37vLTw" id="63uETA6qqIO" role="37wK5m">
+              <ref role="3cqZAo" node="63uETA6qqIQ" resolve="cell" />
+            </node>
+            <node concept="37vLTw" id="63uETA6qxEZ" role="37wK5m">
+              <ref role="3cqZAo" node="63uETA6qv7y" resolve="triggeredFromMPSAction" />
+            </node>
+          </node>
+          <node concept="3clFbF" id="74LepNTVMGZ" role="3cqZAp">
+            <node concept="37vLTI" id="74LepNTVOei" role="3clFbG">
+              <node concept="37vLTw" id="74LepNTVOz5" role="37vLTx">
+                <ref role="3cqZAo" node="74LepNTVvhO" resolve="deleteType" />
+              </node>
+              <node concept="2OqwBi" id="74LepNTVMW1" role="37vLTJ">
+                <node concept="Xjq3P" id="74LepNTVMGX" role="2Oq$k0" />
+                <node concept="2OwXpG" id="74LepNTVNr9" role="2OqNvi">
+                  <ref role="2Oxat5" node="74LepNTVL5V" resolve="deleteType" />
+                </node>
+              </node>
+            </node>
+          </node>
+          <node concept="3clFbF" id="74LepNTVVQG" role="3cqZAp">
+            <node concept="37vLTI" id="74LepNTVWHG" role="3clFbG">
+              <node concept="37vLTw" id="74LepNTVWWP" role="37vLTx">
+                <ref role="3cqZAo" node="74LepNTVOD_" resolve="fromLeftSide" />
+              </node>
+              <node concept="2OqwBi" id="74LepNTVW7C" role="37vLTJ">
+                <node concept="Xjq3P" id="74LepNTVVQE" role="2Oq$k0" />
+                <node concept="2OwXpG" id="74LepNTVWfM" role="2OqNvi">
+                  <ref role="2Oxat5" node="74LepNTVST$" resolve="fromLeftSide" />
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="3Tm1VV" id="63uETA6qqIP" role="1B3o_S" />
+        <node concept="37vLTG" id="63uETA6qqIQ" role="3clF46">
+          <property role="TrG5h" value="cell" />
+          <node concept="3uibUv" id="63uETA6qqIR" role="1tU5fm">
+            <ref role="3uigEE" to="f4zo:~EditorCell" resolve="EditorCell" />
+          </node>
+        </node>
+        <node concept="37vLTG" id="63uETA6qv7y" role="3clF46">
+          <property role="TrG5h" value="triggeredFromMPSAction" />
+          <node concept="10P_77" id="63uETA6qv7z" role="1tU5fm" />
+        </node>
+        <node concept="37vLTG" id="74LepNTVvhO" role="3clF46">
+          <property role="TrG5h" value="deleteType" />
+          <node concept="3uibUv" id="74LepNTV_$m" role="1tU5fm">
+            <ref role="3uigEE" node="74LepNTV$5n" resolve="TableActions.DeleteRowAction.DeleteType" />
+          </node>
+        </node>
+        <node concept="37vLTG" id="74LepNTVOD_" role="3clF46">
+          <property role="TrG5h" value="fromLeftSide" />
+          <node concept="10P_77" id="74LepNTVPkj" role="1tU5fm" />
+        </node>
+      </node>
       <node concept="2tJIrI" id="7IUya7ciS7B" role="jymVt" />
       <node concept="3clFb_" id="56WqtlUiNG$" role="jymVt">
         <property role="TrG5h" value="getActionType" />
@@ -37649,12 +37868,103 @@
           </node>
         </node>
         <node concept="3clFbS" id="40oIQyHH57M" role="3clF47">
-          <node concept="3clFbF" id="5AW5JoZaRHC" role="3cqZAp">
-            <node concept="2OqwBi" id="5AW5JoZaT6h" role="3clFbG">
-              <node concept="1rXfSq" id="5AW5JoZaRHB" role="2Oq$k0">
+          <node concept="3cpWs8" id="74LepNTWgoS" role="3cqZAp">
+            <node concept="3cpWsn" id="74LepNTWgoV" role="3cpWs9">
+              <property role="TrG5h" value="nodeToDelete" />
+              <node concept="3Tqbb2" id="74LepNTWgoQ" role="1tU5fm" />
+              <node concept="1rXfSq" id="74LepNTWjeS" role="33vP2m">
                 <ref role="37wK5l" node="7IUya7ccS5V" resolve="getNodeOfRow" />
               </node>
-              <node concept="3YRAZt" id="5AW5JoZaUvp" role="2OqNvi" />
+            </node>
+          </node>
+          <node concept="3clFbH" id="74LepNTWmNB" role="3cqZAp" />
+          <node concept="3clFbJ" id="74LepNTYqWV" role="3cqZAp">
+            <node concept="3clFbS" id="74LepNTYqWX" role="3clFbx">
+              <node concept="3clFbF" id="74LepNTY9Gt" role="3cqZAp">
+                <node concept="37vLTI" id="74LepNTYaJx" role="3clFbG">
+                  <node concept="2OqwBi" id="74LepNTYcQL" role="37vLTx">
+                    <node concept="37vLTw" id="74LepNTYbNU" role="2Oq$k0">
+                      <ref role="3cqZAo" node="74LepNTWgoV" resolve="nodeToDelete" />
+                    </node>
+                    <node concept="YBYNd" id="74LepNTYe3x" role="2OqNvi" />
+                  </node>
+                  <node concept="37vLTw" id="74LepNTY9Gr" role="37vLTJ">
+                    <ref role="3cqZAo" node="74LepNTWgoV" resolve="nodeToDelete" />
+                  </node>
+                </node>
+              </node>
+            </node>
+            <node concept="1Wc70l" id="74LepNTYyJH" role="3clFbw">
+              <node concept="2OqwBi" id="74LepNTY$vo" role="3uHU7w">
+                <node concept="37vLTw" id="74LepNTYzNt" role="2Oq$k0">
+                  <ref role="3cqZAo" node="74LepNTWgoV" resolve="nodeToDelete" />
+                </node>
+                <node concept="2t3KhH" id="74LepNU9EvB" role="2OqNvi" />
+              </node>
+              <node concept="1Wc70l" id="74LepNTYwnw" role="3uHU7B">
+                <node concept="3clFbC" id="74LepNTYttP" role="3uHU7B">
+                  <node concept="37vLTw" id="74LepNTYs1N" role="3uHU7B">
+                    <ref role="3cqZAo" node="74LepNTVL5V" resolve="deleteType" />
+                  </node>
+                  <node concept="Rm8GO" id="74LepNTYvrX" role="3uHU7w">
+                    <ref role="Rm8GQ" node="74LepNTV_TU" resolve="BACKSPACE" />
+                    <ref role="1Px2BO" node="74LepNTV$5n" resolve="TableActions.DeleteRowAction.DeleteType" />
+                  </node>
+                </node>
+                <node concept="37vLTw" id="74LepNTYxqR" role="3uHU7w">
+                  <ref role="3cqZAo" node="74LepNTVST$" resolve="fromLeftSide" />
+                </node>
+              </node>
+            </node>
+            <node concept="3eNFk2" id="74LepNTYDpR" role="3eNLev">
+              <node concept="1Wc70l" id="74LepNTYSTY" role="3eO9$A">
+                <node concept="1Wc70l" id="74LepNUaV_B" role="3uHU7B">
+                  <node concept="3clFbC" id="74LepNTYFOl" role="3uHU7B">
+                    <node concept="37vLTw" id="74LepNTYEts" role="3uHU7B">
+                      <ref role="3cqZAo" node="74LepNTVL5V" resolve="deleteType" />
+                    </node>
+                    <node concept="Rm8GO" id="74LepNTYIng" role="3uHU7w">
+                      <ref role="Rm8GQ" node="74LepNTVASM" resolve="DELETE" />
+                      <ref role="1Px2BO" node="74LepNTV$5n" resolve="TableActions.DeleteRowAction.DeleteType" />
+                    </node>
+                  </node>
+                  <node concept="3fqX7Q" id="74LepNTYQLa" role="3uHU7w">
+                    <node concept="37vLTw" id="74LepNTYRPu" role="3fr31v">
+                      <ref role="3cqZAo" node="74LepNTVST$" resolve="fromLeftSide" />
+                    </node>
+                  </node>
+                </node>
+                <node concept="2OqwBi" id="74LepNTYTQF" role="3uHU7w">
+                  <node concept="37vLTw" id="74LepNTYTQG" role="2Oq$k0">
+                    <ref role="3cqZAo" node="74LepNTWgoV" resolve="nodeToDelete" />
+                  </node>
+                  <node concept="rvlfL" id="74LepNTYTQH" role="2OqNvi" />
+                </node>
+              </node>
+              <node concept="3clFbS" id="74LepNTYDpT" role="3eOfB_">
+                <node concept="3clFbF" id="74LepNTXAwR" role="3cqZAp">
+                  <node concept="37vLTI" id="74LepNTXBM7" role="3clFbG">
+                    <node concept="37vLTw" id="74LepNTXAwP" role="37vLTJ">
+                      <ref role="3cqZAo" node="74LepNTWgoV" resolve="nodeToDelete" />
+                    </node>
+                    <node concept="2OqwBi" id="74LepNTLpDa" role="37vLTx">
+                      <node concept="37vLTw" id="74LepNTLpDb" role="2Oq$k0">
+                        <ref role="3cqZAo" node="74LepNTWgoV" resolve="nodeToDelete" />
+                      </node>
+                      <node concept="YCak7" id="74LepNTNbxI" role="2OqNvi" />
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+          <node concept="3clFbH" id="74LepNTYYAf" role="3cqZAp" />
+          <node concept="3clFbF" id="74LepNTHMTF" role="3cqZAp">
+            <node concept="2OqwBi" id="74LepNTHNTi" role="3clFbG">
+              <node concept="3YRAZt" id="74LepNTHP2F" role="2OqNvi" />
+              <node concept="37vLTw" id="74LepNTWlVN" role="2Oq$k0">
+                <ref role="3cqZAo" node="74LepNTWgoV" resolve="nodeToDelete" />
+              </node>
             </node>
           </node>
         </node>
@@ -37671,11 +37981,12 @@
       <node concept="3clFbW" id="6R0q0mZRHmo" role="jymVt">
         <node concept="3cqZAl" id="6R0q0mZRHmp" role="3clF45" />
         <node concept="3clFbS" id="6R0q0mZRHmq" role="3clF47">
-          <node concept="XkiVB" id="6R0q0mZRHmr" role="3cqZAp">
-            <ref role="37wK5l" node="7IUya7chrcn" resolve="TableActions.AbstractTableCellAction" />
-            <node concept="37vLTw" id="6R0q0mZRHms" role="37wK5m">
+          <node concept="1VxSAg" id="63uETA6qMlP" role="3cqZAp">
+            <ref role="37wK5l" node="63uETA6q$_u" resolve="TableActions.DeleteColumnAction" />
+            <node concept="37vLTw" id="63uETA6qN8k" role="37wK5m">
               <ref role="3cqZAo" node="6R0q0mZRHmu" resolve="cell" />
             </node>
+            <node concept="3clFbT" id="63uETA6qO2X" role="37wK5m" />
           </node>
         </node>
         <node concept="3Tm1VV" id="6R0q0mZRHmt" role="1B3o_S" />
@@ -37686,6 +37997,32 @@
           </node>
         </node>
       </node>
+      <node concept="2tJIrI" id="63uETA6qDib" role="jymVt" />
+      <node concept="3clFbW" id="63uETA6q$_u" role="jymVt">
+        <node concept="3cqZAl" id="63uETA6q$_v" role="3clF45" />
+        <node concept="3clFbS" id="63uETA6q$_w" role="3clF47">
+          <node concept="XkiVB" id="63uETA6q$_x" role="3cqZAp">
+            <ref role="37wK5l" node="63uETA6oZFl" resolve="TableActions.AbstractTableCellAction" />
+            <node concept="37vLTw" id="63uETA6q$_y" role="37wK5m">
+              <ref role="3cqZAo" node="63uETA6q$_$" resolve="cell" />
+            </node>
+            <node concept="37vLTw" id="63uETA6qIG1" role="37wK5m">
+              <ref role="3cqZAo" node="63uETA6qH6R" resolve="triggeredFromMPSAction" />
+            </node>
+          </node>
+        </node>
+        <node concept="3Tm1VV" id="63uETA6q$_z" role="1B3o_S" />
+        <node concept="37vLTG" id="63uETA6q$_$" role="3clF46">
+          <property role="TrG5h" value="cell" />
+          <node concept="3uibUv" id="63uETA6q$__" role="1tU5fm">
+            <ref role="3uigEE" to="f4zo:~EditorCell" resolve="EditorCell" />
+          </node>
+        </node>
+        <node concept="37vLTG" id="63uETA6qH6R" role="3clF46">
+          <property role="TrG5h" value="triggeredFromMPSAction" />
+          <node concept="10P_77" id="63uETA6qH6S" role="1tU5fm" />
+        </node>
+      </node>
       <node concept="2tJIrI" id="6R0q0mZRHmw" role="jymVt" />
       <node concept="3clFb_" id="56WqtlUiRAj" role="jymVt">
         <property role="TrG5h" value="getActionType" />
diff --git a/code/tables/languages/de.slisson.mps.tables/runtime/models/de/slisson/mps/tables/runtime/gridmodel.mps b/code/tables/languages/de.slisson.mps.tables/runtime/models/de/slisson/mps/tables/runtime/gridmodel.mps
index f999d186f..0a63d23cb 100644
--- a/code/tables/languages/de.slisson.mps.tables/runtime/models/de/slisson/mps/tables/runtime/gridmodel.mps
+++ b/code/tables/languages/de.slisson.mps.tables/runtime/models/de/slisson/mps/tables/runtime/gridmodel.mps
@@ -152,6 +152,9 @@
         <property id="1176718929932" name="isFinal" index="3TUv4t" />
         <child id="1068431790190" name="initializer" index="33vP2m" />
       </concept>
+      <concept id="1513279640923991009" name="jetbrains.mps.baseLanguage.structure.IGenericClassCreator" flags="ng" index="366HgL">
+        <property id="1513279640906337053" name="inferTypeParams" index="373rjd" />
+      </concept>
       <concept id="1109279763828" name="jetbrains.mps.baseLanguage.structure.TypeVariableDeclaration" flags="ng" index="16euLQ">
         <child id="1214996921760" name="bound" index="3ztrMU" />
       </concept>
@@ -169,6 +172,7 @@
       <concept id="1225271177708" name="jetbrains.mps.baseLanguage.structure.StringType" flags="in" index="17QB3L" />
       <concept id="1225271221393" name="jetbrains.mps.baseLanguage.structure.NPENotEqualsExpression" flags="nn" index="17QLQc" />
       <concept id="1225271283259" name="jetbrains.mps.baseLanguage.structure.NPEEqualsExpression" flags="nn" index="17R0WA" />
+      <concept id="1225271408483" name="jetbrains.mps.baseLanguage.structure.IsNotEmptyOperation" flags="nn" index="17RvpY" />
       <concept id="4972933694980447171" name="jetbrains.mps.baseLanguage.structure.BaseVariableDeclaration" flags="ng" index="19Szcq">
         <child id="5680397130376446158" name="type" index="1tU5fm" />
       </concept>
@@ -322,6 +326,10 @@
       <concept id="4079382982702596667" name="jetbrains.mps.baseLanguage.checkedDots.structure.CheckedDotExpression" flags="nn" index="2EnYce" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
+      <concept id="1199542442495" name="jetbrains.mps.baseLanguage.closures.structure.FunctionType" flags="in" index="1ajhzC">
+        <child id="1199542457201" name="resultType" index="1ajl9A" />
+        <child id="1199542501692" name="parameterType" index="1ajw0F" />
+      </concept>
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
         <child id="1199569906740" name="parameter" index="1bW2Oz" />
         <child id="1199569916463" name="body" index="1bW5cS" />
@@ -426,6 +434,14 @@
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
       <concept id="1160666733551" name="jetbrains.mps.baseLanguage.collections.structure.AddAllElementsOperation" flags="nn" index="X8dFx" />
       <concept id="1201792049884" name="jetbrains.mps.baseLanguage.collections.structure.TranslateOperation" flags="nn" index="3goQfb" />
+      <concept id="1197683403723" name="jetbrains.mps.baseLanguage.collections.structure.MapType" flags="in" index="3rvAFt">
+        <child id="1197683466920" name="keyType" index="3rvQeY" />
+        <child id="1197683475734" name="valueType" index="3rvSg0" />
+      </concept>
+      <concept id="1197686869805" name="jetbrains.mps.baseLanguage.collections.structure.HashMapCreator" flags="nn" index="3rGOSV">
+        <child id="1197687026896" name="keyType" index="3rHrn6" />
+        <child id="1197687035757" name="valueType" index="3rHtpV" />
+      </concept>
       <concept id="1225621920911" name="jetbrains.mps.baseLanguage.collections.structure.InsertElementOperation" flags="nn" index="1sK_Qi">
         <child id="1225621943565" name="element" index="1sKFgg" />
         <child id="1225621960341" name="index" index="1sKJu8" />
@@ -434,6 +450,10 @@
       <concept id="1225727723840" name="jetbrains.mps.baseLanguage.collections.structure.FindFirstOperation" flags="nn" index="1z4cxt" />
       <concept id="1202120902084" name="jetbrains.mps.baseLanguage.collections.structure.WhereOperation" flags="nn" index="3zZkjj" />
       <concept id="1202128969694" name="jetbrains.mps.baseLanguage.collections.structure.SelectOperation" flags="nn" index="3$u5V9" />
+      <concept id="1197932370469" name="jetbrains.mps.baseLanguage.collections.structure.MapElement" flags="nn" index="3EllGN">
+        <child id="1197932505799" name="map" index="3ElQJh" />
+        <child id="1197932525128" name="key" index="3ElVtu" />
+      </concept>
       <concept id="1172254888721" name="jetbrains.mps.baseLanguage.collections.structure.ContainsOperation" flags="nn" index="3JPx81" />
       <concept id="1522217801069396578" name="jetbrains.mps.baseLanguage.collections.structure.FoldLeftOperation" flags="nn" index="1MD8d$">
         <child id="1522217801069421796" name="seed" index="1MDeny" />
@@ -530,6 +550,85 @@
         <node concept="10Oyi0" id="7C0FR5AKhmY" role="1tU5fm" />
       </node>
     </node>
+    <node concept="2tJIrI" id="25cxNQTnhrC" role="jymVt" />
+    <node concept="3clFb_" id="25cxNQTnhzr" role="jymVt">
+      <property role="TrG5h" value="getLeftRowDeleteHandler" />
+      <node concept="3uibUv" id="25cxNQTnhzs" role="3clF45">
+        <ref role="3uigEE" node="7C0FR5AJF$W" resolve="PriorizedValue" />
+        <node concept="3uibUv" id="25cxNQTnhzt" role="11_B2D">
+          <ref role="3uigEE" node="25cxNQTj_G3" resolve="IRowDeleteHandler" />
+        </node>
+      </node>
+      <node concept="3Tm1VV" id="25cxNQTnhzu" role="1B3o_S" />
+      <node concept="3clFbS" id="25cxNQTnhzv" role="3clF47" />
+    </node>
+    <node concept="3clFb_" id="25cxNQTnhzw" role="jymVt">
+      <property role="TrG5h" value="getRightRowDeleteHandler" />
+      <node concept="3uibUv" id="25cxNQTnhzx" role="3clF45">
+        <ref role="3uigEE" node="7C0FR5AJF$W" resolve="PriorizedValue" />
+        <node concept="3uibUv" id="25cxNQTnhzy" role="11_B2D">
+          <ref role="3uigEE" node="25cxNQTj_G3" resolve="IRowDeleteHandler" />
+        </node>
+      </node>
+      <node concept="3Tm1VV" id="25cxNQTnhzz" role="1B3o_S" />
+      <node concept="3clFbS" id="25cxNQTnhz$" role="3clF47" />
+    </node>
+    <node concept="3clFb_" id="25cxNQTnhz_" role="jymVt">
+      <property role="TrG5h" value="setLeftRowDeleteHandler" />
+      <node concept="3cqZAl" id="25cxNQTnhzA" role="3clF45" />
+      <node concept="3Tm1VV" id="25cxNQTnhzB" role="1B3o_S" />
+      <node concept="3clFbS" id="25cxNQTnhzC" role="3clF47" />
+      <node concept="37vLTG" id="25cxNQTnhzD" role="3clF46">
+        <property role="TrG5h" value="handler" />
+        <node concept="3uibUv" id="25cxNQTnhzE" role="1tU5fm">
+          <ref role="3uigEE" node="25cxNQTj_G3" resolve="IRowDeleteHandler" />
+        </node>
+      </node>
+    </node>
+    <node concept="3clFb_" id="25cxNQTnhzF" role="jymVt">
+      <property role="TrG5h" value="setRightRowDeleteHandler" />
+      <node concept="3cqZAl" id="25cxNQTnhzG" role="3clF45" />
+      <node concept="3Tm1VV" id="25cxNQTnhzH" role="1B3o_S" />
+      <node concept="3clFbS" id="25cxNQTnhzI" role="3clF47" />
+      <node concept="37vLTG" id="25cxNQTnhzJ" role="3clF46">
+        <property role="TrG5h" value="handler" />
+        <node concept="3uibUv" id="25cxNQTnhzK" role="1tU5fm">
+          <ref role="3uigEE" node="25cxNQTj_G3" resolve="IRowDeleteHandler" />
+        </node>
+      </node>
+    </node>
+    <node concept="3clFb_" id="25cxNQTnhzL" role="jymVt">
+      <property role="TrG5h" value="setLeftRowDeleteHandler" />
+      <node concept="3cqZAl" id="25cxNQTnhzM" role="3clF45" />
+      <node concept="3Tm1VV" id="25cxNQTnhzN" role="1B3o_S" />
+      <node concept="3clFbS" id="25cxNQTnhzO" role="3clF47" />
+      <node concept="37vLTG" id="25cxNQTnhzP" role="3clF46">
+        <property role="TrG5h" value="handler" />
+        <node concept="3uibUv" id="25cxNQTnhzQ" role="1tU5fm">
+          <ref role="3uigEE" node="25cxNQTj_G3" resolve="IRowDeleteHandler" />
+        </node>
+      </node>
+      <node concept="37vLTG" id="25cxNQTnhzR" role="3clF46">
+        <property role="TrG5h" value="priority" />
+        <node concept="10Oyi0" id="25cxNQTnhzS" role="1tU5fm" />
+      </node>
+    </node>
+    <node concept="3clFb_" id="25cxNQTnhzT" role="jymVt">
+      <property role="TrG5h" value="setRightRowDeleteHandler" />
+      <node concept="3cqZAl" id="25cxNQTnhzU" role="3clF45" />
+      <node concept="3Tm1VV" id="25cxNQTnhzV" role="1B3o_S" />
+      <node concept="3clFbS" id="25cxNQTnhzW" role="3clF47" />
+      <node concept="37vLTG" id="25cxNQTnhzX" role="3clF46">
+        <property role="TrG5h" value="handler" />
+        <node concept="3uibUv" id="25cxNQTnhzY" role="1tU5fm">
+          <ref role="3uigEE" node="25cxNQTj_G3" resolve="IRowDeleteHandler" />
+        </node>
+      </node>
+      <node concept="37vLTG" id="25cxNQTnhzZ" role="3clF46">
+        <property role="TrG5h" value="priority" />
+        <node concept="10Oyi0" id="25cxNQTnh$0" role="1tU5fm" />
+      </node>
+    </node>
     <node concept="2tJIrI" id="5TY7OGKEx$T" role="jymVt" />
     <node concept="3clFb_" id="3GKqtdqRN0t" role="jymVt">
       <property role="TrG5h" value="getInsertAction" />
@@ -564,6 +663,17 @@
       <node concept="3Tm1VV" id="m_yL2MPm$d" role="1B3o_S" />
       <node concept="3clFbS" id="m_yL2MPm$e" role="3clF47" />
     </node>
+    <node concept="3clFb_" id="WOxe9PrWFB" role="jymVt">
+      <property role="TrG5h" value="getDeleteAction" />
+      <node concept="3uibUv" id="WOxe9PrWFC" role="3clF45">
+        <ref role="3uigEE" node="7C0FR5AJF$W" resolve="PriorizedValue" />
+        <node concept="3uibUv" id="WOxe9PrWFD" role="11_B2D">
+          <ref role="3uigEE" to="f4zo:~CellAction" resolve="CellAction" />
+        </node>
+      </node>
+      <node concept="3Tm1VV" id="WOxe9PrWFE" role="1B3o_S" />
+      <node concept="3clFbS" id="WOxe9PrWFF" role="3clF47" />
+    </node>
     <node concept="3clFb_" id="3GKqtdqRN0B" role="jymVt">
       <property role="TrG5h" value="setInsertAction" />
       <node concept="3cqZAl" id="3GKqtdqRN0C" role="3clF45" />
@@ -648,6 +758,22 @@
         <node concept="10Oyi0" id="m_yL2MPqJR" role="1tU5fm" />
       </node>
     </node>
+    <node concept="3clFb_" id="WOxe9PtF7I" role="jymVt">
+      <property role="TrG5h" value="setDeleteAction" />
+      <node concept="3cqZAl" id="WOxe9PtF7J" role="3clF45" />
+      <node concept="3Tm1VV" id="WOxe9PtF7K" role="1B3o_S" />
+      <node concept="3clFbS" id="WOxe9PtF7L" role="3clF47" />
+      <node concept="37vLTG" id="WOxe9PtF7M" role="3clF46">
+        <property role="TrG5h" value="action" />
+        <node concept="3uibUv" id="WOxe9PtF7N" role="1tU5fm">
+          <ref role="3uigEE" to="f4zo:~CellAction" resolve="CellAction" />
+        </node>
+      </node>
+      <node concept="37vLTG" id="WOxe9PtF7O" role="3clF46">
+        <property role="TrG5h" value="priority" />
+        <node concept="10Oyi0" id="WOxe9PtF7P" role="1tU5fm" />
+      </node>
+    </node>
     <node concept="2tJIrI" id="3GKqtdqRMeA" role="jymVt" />
     <node concept="3clFb_" id="5TY7OGKE$Fz" role="jymVt">
       <property role="TrG5h" value="getSubstituteInfo" />
@@ -996,6 +1122,41 @@
         <ref role="3uigEE" to="f4zo:~EditorCell" resolve="EditorCell" />
       </node>
     </node>
+    <node concept="2tJIrI" id="74LepNSxDGD" role="jymVt" />
+    <node concept="312cEg" id="74LepNSCgNJ" role="jymVt">
+      <property role="TrG5h" value="endCellActions" />
+      <node concept="3rvAFt" id="74LepNSCgNK" role="1tU5fm">
+        <node concept="3uibUv" id="74LepNSCgNL" role="3rvQeY">
+          <ref role="3uigEE" to="f4zo:~CellActionType" resolve="CellActionType" />
+        </node>
+        <node concept="1ajhzC" id="74LepNSLt_R" role="3rvSg0">
+          <node concept="3uibUv" id="74LepNSLt_S" role="1ajl9A">
+            <ref role="3uigEE" to="f4zo:~CellAction" resolve="CellAction" />
+          </node>
+          <node concept="3uibUv" id="74LepNSLt_T" role="1ajw0F">
+            <ref role="3uigEE" to="f4zo:~EditorCell" resolve="EditorCell" />
+          </node>
+          <node concept="10P_77" id="74LepNSLt_U" role="1ajw0F" />
+        </node>
+      </node>
+      <node concept="2ShNRf" id="74LepNSCgNN" role="33vP2m">
+        <node concept="3rGOSV" id="74LepNSCgNO" role="2ShVmc">
+          <node concept="3uibUv" id="74LepNSCgNP" role="3rHrn6">
+            <ref role="3uigEE" to="f4zo:~CellActionType" resolve="CellActionType" />
+          </node>
+          <node concept="1ajhzC" id="74LepNSKFvB" role="3rHtpV">
+            <node concept="3uibUv" id="74LepNSKXKc" role="1ajl9A">
+              <ref role="3uigEE" to="f4zo:~CellAction" resolve="CellAction" />
+            </node>
+            <node concept="3uibUv" id="74LepNSKIya" role="1ajw0F">
+              <ref role="3uigEE" to="f4zo:~EditorCell" resolve="EditorCell" />
+            </node>
+            <node concept="10P_77" id="74LepNSKOIt" role="1ajw0F" />
+          </node>
+        </node>
+      </node>
+      <node concept="3Tm6S6" id="74LepNSCgNR" role="1B3o_S" />
+    </node>
     <node concept="2tJIrI" id="4ncOM41Wccc" role="jymVt" />
     <node concept="3clFbW" id="6tOcB$JOl_n" role="jymVt">
       <node concept="3cqZAl" id="6tOcB$JOl_p" role="3clF45" />
@@ -1041,6 +1202,11 @@
             </node>
           </node>
         </node>
+        <node concept="3clFbF" id="74LepNSCA1O" role="3cqZAp">
+          <node concept="1rXfSq" id="74LepNSCA1M" role="3clFbG">
+            <ref role="37wK5l" node="74LepNS$D7J" resolve="initializeEndCellActions" />
+          </node>
+        </node>
       </node>
     </node>
     <node concept="2tJIrI" id="RywcYy6ydU" role="jymVt" />
@@ -2360,7 +2526,238 @@
         <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
       </node>
     </node>
-    <node concept="2tJIrI" id="7C0FR5Be2Hv" role="jymVt" />
+    <node concept="2tJIrI" id="25cxNQTlYEH" role="jymVt" />
+    <node concept="3clFb_" id="25cxNQTm4qX" role="jymVt">
+      <property role="1EzhhJ" value="false" />
+      <property role="TrG5h" value="getRowDeleteHandler" />
+      <node concept="37vLTG" id="25cxNQTm4qY" role="3clF46">
+        <property role="TrG5h" value="y" />
+        <node concept="10Oyi0" id="25cxNQTm4qZ" role="1tU5fm" />
+      </node>
+      <node concept="37vLTG" id="25cxNQTm4r0" role="3clF46">
+        <property role="TrG5h" value="left" />
+        <node concept="10P_77" id="25cxNQTm4r1" role="1tU5fm" />
+      </node>
+      <node concept="3uibUv" id="25cxNQTm4r2" role="3clF45">
+        <ref role="3uigEE" node="25cxNQTj_G3" resolve="IRowDeleteHandler" />
+      </node>
+      <node concept="3Tmbuc" id="25cxNQTm4r3" role="1B3o_S" />
+      <node concept="3clFbS" id="25cxNQTm4r4" role="3clF47">
+        <node concept="3clFbJ" id="25cxNQTm4r5" role="3cqZAp">
+          <node concept="3clFbS" id="25cxNQTm4r6" role="3clFbx">
+            <node concept="YS8fn" id="25cxNQTm4r7" role="3cqZAp">
+              <node concept="2ShNRf" id="25cxNQTm4r8" role="YScLw">
+                <node concept="1pGfFk" id="25cxNQTm4r9" role="2ShVmc">
+                  <ref role="37wK5l" to="wyt6:~IndexOutOfBoundsException.&lt;init&gt;(java.lang.String)" resolve="IndexOutOfBoundsException" />
+                  <node concept="3cpWs3" id="25cxNQTm4ra" role="37wK5m">
+                    <node concept="37vLTw" id="25cxNQTm4rb" role="3uHU7w">
+                      <ref role="3cqZAo" node="25cxNQTm4qY" resolve="y" />
+                    </node>
+                    <node concept="3cpWs3" id="25cxNQTm4rc" role="3uHU7B">
+                      <node concept="3cpWs3" id="25cxNQTm4rd" role="3uHU7B">
+                        <node concept="Xl_RD" id="25cxNQTm4re" role="3uHU7B">
+                          <property role="Xl_RC" value="y must be between 0 and " />
+                        </node>
+                        <node concept="1eOMI4" id="25cxNQTm4rf" role="3uHU7w">
+                          <node concept="3cpWsd" id="25cxNQTm4rg" role="1eOMHV">
+                            <node concept="3cmrfG" id="25cxNQTm4rh" role="3uHU7w">
+                              <property role="3cmrfH" value="1" />
+                            </node>
+                            <node concept="1rXfSq" id="25cxNQTm4ri" role="3uHU7B">
+                              <ref role="37wK5l" node="6tOcB$JGRTs" resolve="getSizeX" />
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                      <node concept="Xl_RD" id="25cxNQTm4rj" role="3uHU7w">
+                        <property role="Xl_RC" value=" but was " />
+                      </node>
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+          <node concept="22lmx$" id="25cxNQTm4rk" role="3clFbw">
+            <node concept="2d3UOw" id="25cxNQTm4rl" role="3uHU7w">
+              <node concept="1rXfSq" id="25cxNQTm4rm" role="3uHU7w">
+                <ref role="37wK5l" node="6tOcB$JHEzj" resolve="getSizeY" />
+              </node>
+              <node concept="37vLTw" id="25cxNQTm4rn" role="3uHU7B">
+                <ref role="3cqZAo" node="25cxNQTm4qY" resolve="y" />
+              </node>
+            </node>
+            <node concept="3eOVzh" id="25cxNQTm4ro" role="3uHU7B">
+              <node concept="37vLTw" id="25cxNQTm4rp" role="3uHU7B">
+                <ref role="3cqZAo" node="25cxNQTm4qY" resolve="y" />
+              </node>
+              <node concept="3cmrfG" id="25cxNQTm4rq" role="3uHU7w">
+                <property role="3cmrfH" value="0" />
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="3cpWs8" id="25cxNQTm4rr" role="3cqZAp">
+          <node concept="3cpWsn" id="25cxNQTm4rs" role="3cpWs9">
+            <property role="TrG5h" value="result" />
+            <node concept="3uibUv" id="25cxNQTm4rt" role="1tU5fm">
+              <ref role="3uigEE" node="7C0FR5AJF$W" resolve="PriorizedValue" />
+              <node concept="3uibUv" id="25cxNQTm4ru" role="11_B2D">
+                <ref role="3uigEE" node="25cxNQTj_G3" resolve="IRowDeleteHandler" />
+              </node>
+            </node>
+            <node concept="10Nm6u" id="25cxNQTm4rv" role="33vP2m" />
+          </node>
+        </node>
+        <node concept="1Dw8fO" id="25cxNQTm4rw" role="3cqZAp">
+          <node concept="3clFbS" id="25cxNQTm4rx" role="2LFqv$">
+            <node concept="3cpWs8" id="25cxNQTm4ry" role="3cqZAp">
+              <node concept="3cpWsn" id="25cxNQTm4rz" role="3cpWs9">
+                <property role="TrG5h" value="e" />
+                <node concept="3uibUv" id="25cxNQTm4r$" role="1tU5fm">
+                  <ref role="3uigEE" node="7C0FR5Aonyd" resolve="IGridElement" />
+                </node>
+                <node concept="1rXfSq" id="25cxNQTm4r_" role="33vP2m">
+                  <ref role="37wK5l" node="4UkcdCtMnDB" resolve="getElement" />
+                  <node concept="37vLTw" id="25cxNQTm4rA" role="37wK5m">
+                    <ref role="3cqZAo" node="25cxNQTm4rP" resolve="x" />
+                  </node>
+                  <node concept="37vLTw" id="25cxNQTm4rB" role="37wK5m">
+                    <ref role="3cqZAo" node="25cxNQTm4qY" resolve="y" />
+                  </node>
+                </node>
+              </node>
+            </node>
+            <node concept="3clFbF" id="25cxNQTm4rC" role="3cqZAp">
+              <node concept="37vLTI" id="25cxNQTm4rD" role="3clFbG">
+                <node concept="2YIFZM" id="25cxNQTm4rE" role="37vLTx">
+                  <ref role="37wK5l" node="7C0FR5AK8yg" resolve="getHigher" />
+                  <ref role="1Pybhc" node="7C0FR5AJF$W" resolve="PriorizedValue" />
+                  <node concept="37vLTw" id="25cxNQTm4rF" role="37wK5m">
+                    <ref role="3cqZAo" node="25cxNQTm4rs" resolve="result" />
+                  </node>
+                  <node concept="3K4zz7" id="25cxNQTm4rG" role="37wK5m">
+                    <node concept="37vLTw" id="25cxNQTm4rH" role="3K4Cdx">
+                      <ref role="3cqZAo" node="25cxNQTm4r0" resolve="left" />
+                    </node>
+                    <node concept="2OqwBi" id="25cxNQTm4rI" role="3K4E3e">
+                      <node concept="37vLTw" id="25cxNQTm4rJ" role="2Oq$k0">
+                        <ref role="3cqZAo" node="25cxNQTm4rz" resolve="e" />
+                      </node>
+                      <node concept="liA8E" id="25cxNQTm4rK" role="2OqNvi">
+                        <ref role="37wK5l" node="25cxNQTnhzr" resolve="getLeftRowDeleteHandler" />
+                      </node>
+                    </node>
+                    <node concept="2OqwBi" id="25cxNQTm4rL" role="3K4GZi">
+                      <node concept="37vLTw" id="25cxNQTm4rM" role="2Oq$k0">
+                        <ref role="3cqZAo" node="25cxNQTm4rz" resolve="e" />
+                      </node>
+                      <node concept="liA8E" id="25cxNQTm4rN" role="2OqNvi">
+                        <ref role="37wK5l" node="25cxNQTnhzw" resolve="getRightRowDeleteHandler" />
+                      </node>
+                    </node>
+                  </node>
+                </node>
+                <node concept="37vLTw" id="25cxNQTm4rO" role="37vLTJ">
+                  <ref role="3cqZAo" node="25cxNQTm4rs" resolve="result" />
+                </node>
+              </node>
+            </node>
+          </node>
+          <node concept="3cpWsn" id="25cxNQTm4rP" role="1Duv9x">
+            <property role="TrG5h" value="x" />
+            <node concept="10Oyi0" id="25cxNQTm4rQ" role="1tU5fm" />
+            <node concept="3cmrfG" id="25cxNQTm4rR" role="33vP2m">
+              <property role="3cmrfH" value="0" />
+            </node>
+          </node>
+          <node concept="3eOVzh" id="25cxNQTm4rS" role="1Dwp0S">
+            <node concept="1rXfSq" id="25cxNQTm4rT" role="3uHU7w">
+              <ref role="37wK5l" node="6tOcB$JGRTs" resolve="getSizeX" />
+            </node>
+            <node concept="37vLTw" id="25cxNQTm4rU" role="3uHU7B">
+              <ref role="3cqZAo" node="25cxNQTm4rP" resolve="x" />
+            </node>
+          </node>
+          <node concept="3uNrnE" id="25cxNQTm4rV" role="1Dwrff">
+            <node concept="37vLTw" id="25cxNQTm4rW" role="2$L3a6">
+              <ref role="3cqZAo" node="25cxNQTm4rP" resolve="x" />
+            </node>
+          </node>
+        </node>
+        <node concept="3cpWs6" id="25cxNQTm4rX" role="3cqZAp">
+          <node concept="2EnYce" id="25cxNQTm4rY" role="3cqZAk">
+            <node concept="37vLTw" id="25cxNQTm4rZ" role="2Oq$k0">
+              <ref role="3cqZAo" node="25cxNQTm4rs" resolve="result" />
+            </node>
+            <node concept="liA8E" id="25cxNQTm4s0" role="2OqNvi">
+              <ref role="37wK5l" node="7C0FR5Bc9AB" resolve="getValue" />
+            </node>
+          </node>
+        </node>
+      </node>
+    </node>
+    <node concept="2tJIrI" id="25cxNQTm4s1" role="jymVt" />
+    <node concept="3clFb_" id="25cxNQTm4s2" role="jymVt">
+      <property role="1EzhhJ" value="false" />
+      <property role="TrG5h" value="getRightRowDeleteHandler" />
+      <node concept="3uibUv" id="25cxNQTm4s3" role="3clF45">
+        <ref role="3uigEE" node="25cxNQTj_G3" resolve="IRowDeleteHandler" />
+      </node>
+      <node concept="3Tm1VV" id="25cxNQTm4s4" role="1B3o_S" />
+      <node concept="37vLTG" id="25cxNQTm4s5" role="3clF46">
+        <property role="TrG5h" value="y" />
+        <node concept="10Oyi0" id="25cxNQTm4s6" role="1tU5fm" />
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+      <node concept="3clFbS" id="25cxNQTm4s7" role="3clF47">
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+          <node concept="1rXfSq" id="25cxNQTm4s9" role="3clFbG">
+            <ref role="37wK5l" node="25cxNQTm4qX" resolve="getRowDeleteHandler" />
+            <node concept="37vLTw" id="25cxNQTm4sa" role="37wK5m">
+              <ref role="3cqZAo" node="25cxNQTm4s5" resolve="y" />
+            </node>
+            <node concept="3clFbT" id="25cxNQTm4sb" role="37wK5m">
+              <property role="3clFbU" value="false" />
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="2AHcQZ" id="25cxNQTm4sc" role="2AJF6D">
+        <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
+      </node>
+    </node>
+    <node concept="2tJIrI" id="25cxNQTm4sd" role="jymVt" />
+    <node concept="3clFb_" id="25cxNQTm4se" role="jymVt">
+      <property role="1EzhhJ" value="false" />
+      <property role="TrG5h" value="getLeftRowDeleteHandler" />
+      <node concept="3uibUv" id="25cxNQTm4sf" role="3clF45">
+        <ref role="3uigEE" node="25cxNQTj_G3" resolve="IRowDeleteHandler" />
+      </node>
+      <node concept="3Tm1VV" id="25cxNQTm4sg" role="1B3o_S" />
+      <node concept="37vLTG" id="25cxNQTm4sh" role="3clF46">
+        <property role="TrG5h" value="y" />
+        <node concept="10Oyi0" id="25cxNQTm4si" role="1tU5fm" />
+      </node>
+      <node concept="3clFbS" id="25cxNQTm4sj" role="3clF47">
+        <node concept="3clFbF" id="25cxNQTm4sk" role="3cqZAp">
+          <node concept="1rXfSq" id="25cxNQTm4sl" role="3clFbG">
+            <ref role="37wK5l" node="25cxNQTm4qX" resolve="getRowDeleteHandler" />
+            <node concept="37vLTw" id="25cxNQTm4sm" role="37wK5m">
+              <ref role="3cqZAo" node="25cxNQTm4sh" resolve="y" />
+            </node>
+            <node concept="3clFbT" id="25cxNQTm4sn" role="37wK5m">
+              <property role="3clFbU" value="true" />
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="2AHcQZ" id="25cxNQTm4so" role="2AJF6D">
+        <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
+      </node>
+    </node>
+    <node concept="2tJIrI" id="25cxNQTrEyX" role="jymVt" />
+    <node concept="2tJIrI" id="25cxNQTrFqc" role="jymVt" />
+    <node concept="2tJIrI" id="25cxNQTm3_a" role="jymVt" />
     <node concept="3clFb_" id="7Nzu1McpSXh" role="jymVt">
       <property role="TrG5h" value="clearRowHeaders" />
       <node concept="3cqZAl" id="7Nzu1McpSXj" role="3clF45" />
@@ -4680,14 +5077,6 @@
                   <ref role="37wK5l" to="wyt6:~IllegalArgumentException.&lt;init&gt;(java.lang.String)" resolve="IllegalArgumentException" />
                   <node concept="3cpWs3" id="7C0FR5BsQTN" role="37wK5m">
                     <node concept="3cpWs3" id="7C0FR5BsRXp" role="3uHU7B">
-                      <node concept="2OqwBi" id="7C0FR5BsSj_" role="3uHU7w">
-                        <node concept="37vLTw" id="7C0FR5BsSeB" role="2Oq$k0">
-                          <ref role="3cqZAo" node="7C0FR5BsNv$" resolve="pos" />
-                        </node>
-                        <node concept="liA8E" id="7C0FR5BsSDz" role="2OqNvi">
-                          <ref role="37wK5l" to="sse1:GrM9mu4M1z" resolve="getY" />
-                        </node>
-                      </node>
                       <node concept="3cpWs3" id="7C0FR5BsOxT" role="3uHU7B">
                         <node concept="3cpWs3" id="7C0FR5BsPAR" role="3uHU7B">
                           <node concept="2OqwBi" id="7C0FR5BsQ9O" role="3uHU7w">
@@ -4702,12 +5091,12 @@
                             <node concept="3cpWs3" id="7C0FR5Br8Zu" role="3uHU7B">
                               <node concept="3cpWs3" id="7C0FR5Br87r" role="3uHU7B">
                                 <node concept="3cpWs3" id="7C0FR5Br7m6" role="3uHU7B">
-                                  <node concept="Xl_RD" id="7C0FR5Br6Yg" role="3uHU7B">
-                                    <property role="Xl_RC" value="position (" />
-                                  </node>
                                   <node concept="37vLTw" id="7C0FR5Br7mi" role="3uHU7w">
                                     <ref role="3cqZAo" node="4UkcdCtQmkw" resolve="x" />
                                   </node>
+                                  <node concept="Xl_RD" id="7C0FR5Br6Yg" role="3uHU7B">
+                                    <property role="Xl_RC" value="position (" />
+                                  </node>
                                 </node>
                                 <node concept="Xl_RD" id="7C0FR5Br87B" role="3uHU7w">
                                   <property role="Xl_RC" value=", " />
@@ -4726,6 +5115,14 @@
                           <property role="Xl_RC" value=", " />
                         </node>
                       </node>
+                      <node concept="2OqwBi" id="7C0FR5BsSj_" role="3uHU7w">
+                        <node concept="37vLTw" id="7C0FR5BsSeB" role="2Oq$k0">
+                          <ref role="3cqZAo" node="7C0FR5BsNv$" resolve="pos" />
+                        </node>
+                        <node concept="liA8E" id="7C0FR5BsSDz" role="2OqNvi">
+                          <ref role="37wK5l" to="sse1:GrM9mu4M1z" resolve="getY" />
+                        </node>
+                      </node>
                     </node>
                     <node concept="Xl_RD" id="7C0FR5BsQTV" role="3uHU7w">
                       <property role="Xl_RC" value=")" />
@@ -8652,6 +9049,399 @@
         </node>
       </node>
     </node>
+    <node concept="2tJIrI" id="74LepNSUVBy" role="jymVt" />
+    <node concept="3clFb_" id="74LepNS$D7J" role="jymVt">
+      <property role="TrG5h" value="initializeEndCellActions" />
+      <node concept="3clFbS" id="74LepNS$D7M" role="3clF47">
+        <node concept="3clFbF" id="74LepNS_nmU" role="3cqZAp">
+          <node concept="37vLTI" id="74LepNS_HQS" role="3clFbG">
+            <node concept="3EllGN" id="74LepNS_yRm" role="37vLTJ">
+              <node concept="37vLTw" id="74LepNS_nmS" role="3ElQJh">
+                <ref role="3cqZAo" node="74LepNSCgNJ" resolve="endCellActions" />
+              </node>
+              <node concept="Rm8GO" id="4eOnSiwSCwQ" role="3ElVtu">
+                <ref role="1Px2BO" to="f4zo:~CellActionType" resolve="CellActionType" />
+                <ref role="Rm8GQ" to="f4zo:~CellActionType.INSERT" resolve="INSERT" />
+              </node>
+            </node>
+            <node concept="1bVj0M" id="74LepNSN7Wu" role="37vLTx">
+              <node concept="3clFbS" id="74LepNSN7Ww" role="1bW5cS">
+                <node concept="3clFbF" id="74LepNSNQ6i" role="3cqZAp">
+                  <node concept="2ShNRf" id="74LepNSCD$8" role="3clFbG">
+                    <node concept="1pGfFk" id="74LepNSCD$9" role="2ShVmc">
+                      <ref role="37wK5l" to="hm5v:7IUya7cfM4j" resolve="TableActions.InsertRowAction" />
+                      <node concept="37vLTw" id="74LepNSO2aW" role="37wK5m">
+                        <ref role="3cqZAo" node="74LepNSNk35" resolve="cell" />
+                      </node>
+                      <node concept="37vLTw" id="74LepNSCD$b" role="37wK5m">
+                        <ref role="3cqZAo" node="74LepNSNph9" resolve="isLeft" />
+                      </node>
+                    </node>
+                  </node>
+                </node>
+              </node>
+              <node concept="37vLTG" id="74LepNSNk35" role="1bW2Oz">
+                <property role="TrG5h" value="cell" />
+                <node concept="3uibUv" id="74LepNSNk34" role="1tU5fm">
+                  <ref role="3uigEE" to="f4zo:~EditorCell" resolve="EditorCell" />
+                </node>
+              </node>
+              <node concept="37vLTG" id="74LepNSNph9" role="1bW2Oz">
+                <property role="TrG5h" value="isLeft" />
+                <node concept="10P_77" id="74LepNSNpAF" role="1tU5fm" />
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="3clFbF" id="74LepNSDyh6" role="3cqZAp">
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+            <node concept="3EllGN" id="74LepNSDyh9" role="37vLTJ">
+              <node concept="37vLTw" id="74LepNSDyhb" role="3ElQJh">
+                <ref role="3cqZAo" node="74LepNSCgNJ" resolve="endCellActions" />
+              </node>
+              <node concept="Rm8GO" id="4eOnSiwSEfn" role="3ElVtu">
+                <ref role="1Px2BO" to="f4zo:~CellActionType" resolve="CellActionType" />
+                <ref role="Rm8GQ" to="f4zo:~CellActionType.INSERT_BEFORE" resolve="INSERT_BEFORE" />
+              </node>
+            </node>
+            <node concept="1bVj0M" id="74LepNSP0IC" role="37vLTx">
+              <node concept="3clFbS" id="74LepNSP0ID" role="1bW5cS">
+                <node concept="3clFbF" id="74LepNSQ0ak" role="3cqZAp">
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+                      <ref role="3cqZAo" node="74LepNSP0IJ" resolve="cell" />
+                    </node>
+                    <node concept="liA8E" id="74LepNSQaMD" role="2OqNvi">
+                      <ref role="37wK5l" to="f4zo:~EditorCell.getAction(jetbrains.mps.openapi.editor.cells.CellActionType)" resolve="getAction" />
+                      <node concept="Rm8GO" id="74LepNSQnos" role="37wK5m">
+                        <ref role="1Px2BO" to="f4zo:~CellActionType" resolve="CellActionType" />
+                        <ref role="Rm8GQ" to="f4zo:~CellActionType.INSERT" resolve="INSERT" />
+                      </node>
+                    </node>
+                  </node>
+                </node>
+              </node>
+              <node concept="37vLTG" id="74LepNSP0IJ" role="1bW2Oz">
+                <property role="TrG5h" value="cell" />
+                <node concept="3uibUv" id="74LepNSP0IK" role="1tU5fm">
+                  <ref role="3uigEE" to="f4zo:~EditorCell" resolve="EditorCell" />
+                </node>
+              </node>
+              <node concept="37vLTG" id="74LepNSP0IL" role="1bW2Oz">
+                <property role="TrG5h" value="isLeft" />
+                <node concept="10P_77" id="74LepNSP0IM" role="1tU5fm" />
+              </node>
+            </node>
+          </node>
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+        <node concept="3clFbF" id="74LepNSDE5d" role="3cqZAp">
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+              <node concept="37vLTw" id="74LepNSDE5i" role="3ElQJh">
+                <ref role="3cqZAo" node="74LepNSCgNJ" resolve="endCellActions" />
+              </node>
+              <node concept="Rm8GO" id="40oIQyHKPA$" role="3ElVtu">
+                <ref role="1Px2BO" to="f4zo:~CellActionType" resolve="CellActionType" />
+                <ref role="Rm8GQ" to="f4zo:~CellActionType.DELETE" resolve="DELETE" />
+              </node>
+            </node>
+            <node concept="1bVj0M" id="74LepNSPqho" role="37vLTx">
+              <node concept="3clFbS" id="74LepNSPqhp" role="1bW5cS">
+                <node concept="3clFbF" id="74LepNSQSoh" role="3cqZAp">
+                  <node concept="2ShNRf" id="74LepNSCD$k" role="3clFbG">
+                    <node concept="1pGfFk" id="74LepNSCD$l" role="2ShVmc">
+                      <ref role="37wK5l" to="hm5v:63uETA6qqIK" resolve="TableActions.DeleteRowAction" />
+                      <node concept="37vLTw" id="74LepNSR4g0" role="37wK5m">
+                        <ref role="3cqZAo" node="74LepNSPqhq" resolve="cell" />
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+                      <node concept="3clFbT" id="74LepNU0vmE" role="37wK5m" />
+                      <node concept="Rm8GO" id="74LepNU1wdz" role="37wK5m">
+                        <ref role="Rm8GQ" to="hm5v:74LepNTVASM" resolve="DELETE" />
+                        <ref role="1Px2BO" to="hm5v:74LepNTV$5n" resolve="TableActions.DeleteRowAction.DeleteType" />
+                      </node>
+                      <node concept="37vLTw" id="74LepNU1MNa" role="37wK5m">
+                        <ref role="3cqZAo" node="74LepNSPqhs" resolve="isLeft" />
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+              <node concept="37vLTG" id="74LepNSPqhq" role="1bW2Oz">
+                <property role="TrG5h" value="cell" />
+                <node concept="3uibUv" id="74LepNSPqhr" role="1tU5fm">
+                  <ref role="3uigEE" to="f4zo:~EditorCell" resolve="EditorCell" />
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+          </node>
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+        <node concept="3clFbF" id="74LepNSDJmk" role="3cqZAp">
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+              <node concept="Rm8GO" id="63uETA6RLV8" role="3ElVtu">
+                <ref role="Rm8GQ" to="f4zo:~CellActionType.BACKSPACE" resolve="BACKSPACE" />
+                <ref role="1Px2BO" to="f4zo:~CellActionType" resolve="CellActionType" />
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+            </node>
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+                    <node concept="1pGfFk" id="74LepNSCD$r" role="2ShVmc">
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+                      <node concept="37vLTw" id="74LepNSRDrB" role="37wK5m">
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+                      <node concept="Rm8GO" id="74LepNU2pCW" role="37wK5m">
+                        <ref role="Rm8GQ" to="hm5v:74LepNTV_TU" resolve="BACKSPACE" />
+                        <ref role="1Px2BO" to="hm5v:74LepNTV$5n" resolve="TableActions.DeleteRowAction.DeleteType" />
+                      </node>
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+                <node concept="3uibUv" id="74LepNSPvOy" role="1tU5fm">
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+              <node concept="37vLTG" id="74LepNSPvOz" role="1bW2Oz">
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+              <node concept="Rm8GO" id="5AW5JoZegv6" role="3ElVtu">
+                <ref role="1Px2BO" to="f4zo:~CellActionType" resolve="CellActionType" />
+                <ref role="Rm8GQ" to="f4zo:~CellActionType.SELECT_NEXT" resolve="SELECT_NEXT" />
+              </node>
+            </node>
+            <node concept="1bVj0M" id="74LepNSP_m4" role="37vLTx">
+              <node concept="3clFbS" id="74LepNSP_m5" role="1bW5cS">
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+                      <ref role="37wK5l" to="hm5v:7IUya7ciXQl" resolve="TableActions.SelectRowNodeAction" />
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+              </node>
+              <node concept="Rm8GO" id="5AW5JoZegAA" role="3ElVtu">
+                <ref role="1Px2BO" to="f4zo:~CellActionType" resolve="CellActionType" />
+                <ref role="Rm8GQ" to="f4zo:~CellActionType.SELECT_PREVIOUS" resolve="SELECT_PREVIOUS" />
+              </node>
+            </node>
+            <node concept="1bVj0M" id="74LepNSPEZe" role="37vLTx">
+              <node concept="3clFbS" id="74LepNSPEZf" role="1bW5cS">
+                <node concept="3clFbF" id="74LepNSSySR" role="3cqZAp">
+                  <node concept="2ShNRf" id="74LepNSCD$A" role="3clFbG">
+                    <node concept="1pGfFk" id="74LepNSCD$B" role="2ShVmc">
+                      <ref role="37wK5l" to="hm5v:7IUya7ciXQl" resolve="TableActions.SelectRowNodeAction" />
+                      <node concept="37vLTw" id="74LepNSSQ5K" role="37wK5m">
+                        <ref role="3cqZAo" node="74LepNSPEZg" resolve="cell" />
+                      </node>
+                    </node>
+                  </node>
+                </node>
+              </node>
+              <node concept="37vLTG" id="74LepNSPEZg" role="1bW2Oz">
+                <property role="TrG5h" value="cell" />
+                <node concept="3uibUv" id="74LepNSPEZh" role="1tU5fm">
+                  <ref role="3uigEE" to="f4zo:~EditorCell" resolve="EditorCell" />
+                </node>
+              </node>
+              <node concept="37vLTG" id="74LepNSPEZi" role="1bW2Oz">
+                <property role="TrG5h" value="isLeft" />
+                <node concept="10P_77" id="74LepNSPEZj" role="1tU5fm" />
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="3clFbF" id="74LepNSDXkI" role="3cqZAp">
+          <node concept="37vLTI" id="74LepNSDXkJ" role="3clFbG">
+            <node concept="3EllGN" id="74LepNSDXkL" role="37vLTJ">
+              <node concept="37vLTw" id="74LepNSDXkN" role="3ElQJh">
+                <ref role="3cqZAo" node="74LepNSCgNJ" resolve="endCellActions" />
+              </node>
+              <node concept="Rm8GO" id="5AW5JoZAbGL" role="3ElVtu">
+                <ref role="1Px2BO" to="f4zo:~CellActionType" resolve="CellActionType" />
+                <ref role="Rm8GQ" to="f4zo:~CellActionType.PASTE" resolve="PASTE" />
+              </node>
+            </node>
+            <node concept="1bVj0M" id="74LepNSPMRE" role="37vLTx">
+              <node concept="3clFbS" id="74LepNSPMRF" role="1bW5cS">
+                <node concept="3clFbF" id="74LepNST949" role="3cqZAp">
+                  <node concept="2ShNRf" id="74LepNSCD$G" role="3clFbG">
+                    <node concept="1pGfFk" id="74LepNSCD$H" role="2ShVmc">
+                      <ref role="37wK5l" to="hm5v:7IUya7cix5V" resolve="TableActions.PasteAction" />
+                      <node concept="37vLTw" id="74LepNSUk8$" role="37wK5m">
+                        <ref role="3cqZAo" node="74LepNSPMRG" resolve="cell" />
+                      </node>
+                      <node concept="37vLTw" id="74LepNST_zO" role="37wK5m">
+                        <ref role="3cqZAo" node="74LepNSPMRI" resolve="isLeft" />
+                      </node>
+                    </node>
+                  </node>
+                </node>
+              </node>
+              <node concept="37vLTG" id="74LepNSPMRG" role="1bW2Oz">
+                <property role="TrG5h" value="cell" />
+                <node concept="3uibUv" id="74LepNSPMRH" role="1tU5fm">
+                  <ref role="3uigEE" to="f4zo:~EditorCell" resolve="EditorCell" />
+                </node>
+              </node>
+              <node concept="37vLTG" id="74LepNSPMRI" role="1bW2Oz">
+                <property role="TrG5h" value="isLeft" />
+                <node concept="10P_77" id="74LepNSPMRJ" role="1tU5fm" />
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="3Tm1VV" id="74LepNS$v33" role="1B3o_S" />
+      <node concept="3cqZAl" id="74LepNS$wPw" role="3clF45" />
+    </node>
+    <node concept="2tJIrI" id="74LepNSCOMl" role="jymVt" />
+    <node concept="3clFb_" id="74LepNSXX9A" role="jymVt">
+      <property role="TrG5h" value="setEndCellAction" />
+      <node concept="3clFbS" id="74LepNSXX9B" role="3clF47">
+        <node concept="3clFbF" id="74LepNSYs6N" role="3cqZAp">
+          <node concept="37vLTI" id="74LepNSYyYJ" role="3clFbG">
+            <node concept="37vLTw" id="74LepNSYDcg" role="37vLTx">
+              <ref role="3cqZAo" node="74LepNSXX9G" resolve="creator" />
+            </node>
+            <node concept="3EllGN" id="74LepNSYs6P" role="37vLTJ">
+              <node concept="37vLTw" id="74LepNSYs6Q" role="3ElVtu">
+                <ref role="3cqZAo" node="74LepNSXX9E" resolve="type" />
+              </node>
+              <node concept="37vLTw" id="74LepNSYs6R" role="3ElQJh">
+                <ref role="3cqZAo" node="74LepNSCgNJ" resolve="endCellActions" />
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="3Tm1VV" id="74LepNSXX9C" role="1B3o_S" />
+      <node concept="3cqZAl" id="74LepNSXX9D" role="3clF45" />
+      <node concept="37vLTG" id="74LepNSXX9E" role="3clF46">
+        <property role="TrG5h" value="type" />
+        <node concept="3uibUv" id="74LepNSXX9F" role="1tU5fm">
+          <ref role="3uigEE" to="f4zo:~CellActionType" resolve="CellActionType" />
+        </node>
+      </node>
+      <node concept="37vLTG" id="74LepNSXX9G" role="3clF46">
+        <property role="TrG5h" value="creator" />
+        <node concept="1ajhzC" id="74LepNSXX9H" role="1tU5fm">
+          <node concept="3uibUv" id="74LepNSXX9I" role="1ajl9A">
+            <ref role="3uigEE" to="f4zo:~CellAction" resolve="CellAction" />
+          </node>
+          <node concept="3uibUv" id="74LepNSXX9J" role="1ajw0F">
+            <ref role="3uigEE" to="f4zo:~EditorCell" resolve="EditorCell" />
+          </node>
+          <node concept="10P_77" id="74LepNSXX9K" role="1ajw0F" />
+        </node>
+      </node>
+    </node>
+    <node concept="2tJIrI" id="74LepNTa4$L" role="jymVt" />
+    <node concept="3clFb_" id="74LepNTa7UD" role="jymVt">
+      <property role="TrG5h" value="getEndCellAction" />
+      <node concept="3clFbS" id="74LepNTa7UE" role="3clF47">
+        <node concept="3clFbF" id="74LepNTa7UF" role="3cqZAp">
+          <node concept="3EllGN" id="74LepNTa7UI" role="3clFbG">
+            <node concept="37vLTw" id="74LepNTa7UJ" role="3ElVtu">
+              <ref role="3cqZAo" node="74LepNTa7UN" resolve="type" />
+            </node>
+            <node concept="37vLTw" id="74LepNTa7UK" role="3ElQJh">
+              <ref role="3cqZAo" node="74LepNSCgNJ" resolve="endCellActions" />
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="3Tm1VV" id="74LepNTa7UL" role="1B3o_S" />
+      <node concept="37vLTG" id="74LepNTa7UN" role="3clF46">
+        <property role="TrG5h" value="type" />
+        <node concept="3uibUv" id="74LepNTa7UO" role="1tU5fm">
+          <ref role="3uigEE" to="f4zo:~CellActionType" resolve="CellActionType" />
+        </node>
+      </node>
+      <node concept="1ajhzC" id="74LepNTb3tP" role="3clF45">
+        <node concept="3uibUv" id="74LepNTb3tQ" role="1ajl9A">
+          <ref role="3uigEE" to="f4zo:~CellAction" resolve="CellAction" />
+        </node>
+        <node concept="3uibUv" id="74LepNTb3tR" role="1ajw0F">
+          <ref role="3uigEE" to="f4zo:~EditorCell" resolve="EditorCell" />
+        </node>
+        <node concept="10P_77" id="74LepNTb3tS" role="1ajw0F" />
+      </node>
+    </node>
+    <node concept="2tJIrI" id="74LepNSZCTZ" role="jymVt" />
+    <node concept="3clFb_" id="74LepNT56X5" role="jymVt">
+      <property role="TrG5h" value="getEndCellActionsCreator" />
+      <node concept="3clFbS" id="74LepNT56X6" role="3clF47">
+        <node concept="3clFbF" id="74LepNT56X7" role="3cqZAp">
+          <node concept="37vLTw" id="74LepNT56Xa" role="3clFbG">
+            <ref role="3cqZAo" node="74LepNSCgNJ" resolve="endCellActions" />
+          </node>
+        </node>
+      </node>
+      <node concept="3Tm1VV" id="74LepNT56Xb" role="1B3o_S" />
+      <node concept="3rvAFt" id="74LepNT5Gj$" role="3clF45">
+        <node concept="3uibUv" id="74LepNT5RGi" role="3rvQeY">
+          <ref role="3uigEE" to="f4zo:~CellActionType" resolve="CellActionType" />
+        </node>
+        <node concept="1ajhzC" id="74LepNT56Xe" role="3rvSg0">
+          <node concept="3uibUv" id="74LepNT56Xf" role="1ajl9A">
+            <ref role="3uigEE" to="f4zo:~CellAction" resolve="CellAction" />
+          </node>
+          <node concept="3uibUv" id="74LepNT56Xg" role="1ajw0F">
+            <ref role="3uigEE" to="f4zo:~EditorCell" resolve="EditorCell" />
+          </node>
+          <node concept="10P_77" id="74LepNT56Xh" role="1ajw0F" />
+        </node>
+      </node>
+    </node>
+    <node concept="2tJIrI" id="74LepNT4ZVR" role="jymVt" />
     <node concept="3Tm1VV" id="7C0FR5Aonzs" role="1B3o_S" />
     <node concept="3uibUv" id="7C0FR5AqKeE" role="1zkMxy">
       <ref role="3uigEE" node="7C0FR5ApyNm" resolve="GridElement" />
@@ -8780,6 +9570,26 @@
         </node>
       </node>
     </node>
+    <node concept="312cEg" id="25cxNQTs1JE" role="jymVt">
+      <property role="TrG5h" value="myLeftRowDeleteHandler" />
+      <node concept="3Tm6S6" id="25cxNQTs1JF" role="1B3o_S" />
+      <node concept="3uibUv" id="25cxNQTs1JG" role="1tU5fm">
+        <ref role="3uigEE" node="7C0FR5AJF$W" resolve="PriorizedValue" />
+        <node concept="3uibUv" id="25cxNQTs1JH" role="11_B2D">
+          <ref role="3uigEE" node="25cxNQTj_G3" resolve="IRowDeleteHandler" />
+        </node>
+      </node>
+    </node>
+    <node concept="312cEg" id="25cxNQTs1JI" role="jymVt">
+      <property role="TrG5h" value="myRightRowDeleteHandler" />
+      <node concept="3Tm6S6" id="25cxNQTs1JJ" role="1B3o_S" />
+      <node concept="3uibUv" id="25cxNQTs1JK" role="1tU5fm">
+        <ref role="3uigEE" node="7C0FR5AJF$W" resolve="PriorizedValue" />
+        <node concept="3uibUv" id="25cxNQTs1JL" role="11_B2D">
+          <ref role="3uigEE" node="25cxNQTj_G3" resolve="IRowDeleteHandler" />
+        </node>
+      </node>
+    </node>
     <node concept="312cEg" id="3GKqtdqRDGv" role="jymVt">
       <property role="TrG5h" value="myInsertAction" />
       <node concept="3Tm6S6" id="3GKqtdqRDGw" role="1B3o_S" />
@@ -8810,6 +9620,16 @@
         </node>
       </node>
     </node>
+    <node concept="312cEg" id="WOxe9Ps7s5" role="jymVt">
+      <property role="TrG5h" value="myDeleteAction" />
+      <node concept="3Tm6S6" id="WOxe9Ps7s6" role="1B3o_S" />
+      <node concept="3uibUv" id="WOxe9Ps7s7" role="1tU5fm">
+        <ref role="3uigEE" node="7C0FR5AJF$W" resolve="PriorizedValue" />
+        <node concept="3uibUv" id="WOxe9Ps7s8" role="11_B2D">
+          <ref role="3uigEE" to="f4zo:~CellAction" resolve="CellAction" />
+        </node>
+      </node>
+    </node>
     <node concept="312cEg" id="5TY7OGKEp$Z" role="jymVt">
       <property role="TrG5h" value="mySubstituteInfo" />
       <node concept="3Tm6S6" id="5TY7OGKEp_0" role="1B3o_S" />
@@ -9363,6 +10183,50 @@
             </node>
           </node>
         </node>
+        <node concept="3clFbF" id="25cxNQTs4SK" role="3cqZAp">
+          <node concept="37vLTI" id="25cxNQTs4SL" role="3clFbG">
+            <node concept="37vLTw" id="25cxNQTs4SM" role="37vLTJ">
+              <ref role="3cqZAo" node="25cxNQTs1JE" resolve="myLeftRowDeleteHandler" />
+            </node>
+            <node concept="2YIFZM" id="25cxNQTs4SN" role="37vLTx">
+              <ref role="37wK5l" node="7C0FR5AK8yg" resolve="getHigher" />
+              <ref role="1Pybhc" node="7C0FR5AJF$W" resolve="PriorizedValue" />
+              <node concept="37vLTw" id="25cxNQTs4SO" role="37wK5m">
+                <ref role="3cqZAo" node="25cxNQTs1JE" resolve="myLeftRowDeleteHandler" />
+              </node>
+              <node concept="2OqwBi" id="25cxNQTs4SP" role="37wK5m">
+                <node concept="37vLTw" id="25cxNQTs4SQ" role="2Oq$k0">
+                  <ref role="3cqZAo" node="7C0FR5AJQgE" resolve="parent" />
+                </node>
+                <node concept="liA8E" id="25cxNQTs4SR" role="2OqNvi">
+                  <ref role="37wK5l" node="25cxNQTnhzr" resolve="getLeftRowDeleteHandler" />
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="3clFbF" id="25cxNQTs4SS" role="3cqZAp">
+          <node concept="37vLTI" id="25cxNQTs4ST" role="3clFbG">
+            <node concept="37vLTw" id="25cxNQTs4SU" role="37vLTJ">
+              <ref role="3cqZAo" node="25cxNQTs1JI" resolve="myRightRowDeleteHandler" />
+            </node>
+            <node concept="2YIFZM" id="25cxNQTs4SV" role="37vLTx">
+              <ref role="1Pybhc" node="7C0FR5AJF$W" resolve="PriorizedValue" />
+              <ref role="37wK5l" node="7C0FR5AK8yg" resolve="getHigher" />
+              <node concept="37vLTw" id="25cxNQTs4SW" role="37wK5m">
+                <ref role="3cqZAo" node="25cxNQTs1JI" resolve="myRightRowDeleteHandler" />
+              </node>
+              <node concept="2OqwBi" id="25cxNQTs4SX" role="37wK5m">
+                <node concept="37vLTw" id="25cxNQTs4SY" role="2Oq$k0">
+                  <ref role="3cqZAo" node="7C0FR5AJQgE" resolve="parent" />
+                </node>
+                <node concept="liA8E" id="25cxNQTs4SZ" role="2OqNvi">
+                  <ref role="37wK5l" node="25cxNQTnhzw" resolve="getRightRowDeleteHandler" />
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
         <node concept="3clFbF" id="3GKqtdqXdBM" role="3cqZAp">
           <node concept="37vLTI" id="3GKqtdqXeeH" role="3clFbG">
             <node concept="2YIFZM" id="3GKqtdqXfe8" role="37vLTx">
@@ -9429,6 +10293,29 @@
             </node>
           </node>
         </node>
+        <node concept="3clFbF" id="WOxe9Psgcb" role="3cqZAp">
+          <node concept="37vLTI" id="WOxe9Psgcc" role="3clFbG">
+            <node concept="2YIFZM" id="WOxe9Psgcd" role="37vLTx">
+              <ref role="37wK5l" node="7C0FR5AK8yg" resolve="getHigher" />
+              <ref role="1Pybhc" node="7C0FR5AJF$W" resolve="PriorizedValue" />
+              <node concept="37vLTw" id="WOxe9Psgce" role="37wK5m">
+                <ref role="3cqZAo" node="WOxe9Ps7s5" resolve="myDeleteAction" />
+              </node>
+              <node concept="2OqwBi" id="WOxe9Psgcf" role="37wK5m">
+                <node concept="37vLTw" id="WOxe9Psgcg" role="2Oq$k0">
+                  <ref role="3cqZAo" node="7C0FR5AJQgE" resolve="parent" />
+                </node>
+                <node concept="liA8E" id="WOxe9Psgch" role="2OqNvi">
+                  <ref role="37wK5l" node="WOxe9PrWFB" resolve="getDeleteAction" />
+                </node>
+              </node>
+            </node>
+            <node concept="37vLTw" id="WOxe9Psgci" role="37vLTJ">
+              <ref role="3cqZAo" node="WOxe9Ps7s5" resolve="myDeleteAction" />
+            </node>
+          </node>
+        </node>
+        <node concept="3clFbH" id="WOxe9PseWK" role="3cqZAp" />
         <node concept="3clFbF" id="5TY7OGKEtpq" role="3cqZAp">
           <node concept="37vLTI" id="5TY7OGKEtpr" role="3clFbG">
             <node concept="2YIFZM" id="5TY7OGKEtps" role="37vLTx">
@@ -9641,6 +10528,7 @@
         </node>
       </node>
     </node>
+    <node concept="2tJIrI" id="25cxNQTtFU5" role="jymVt" />
     <node concept="3clFb_" id="7C0FR5AKhJW" role="jymVt">
       <property role="1EzhhJ" value="false" />
       <property role="TrG5h" value="getLeftRowCreateHandler" />
@@ -9662,6 +10550,7 @@
         <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
       </node>
     </node>
+    <node concept="2tJIrI" id="25cxNQTtIEU" role="jymVt" />
     <node concept="3clFb_" id="7C0FR5AKhK4" role="jymVt">
       <property role="1EzhhJ" value="false" />
       <property role="TrG5h" value="getRightRowCreateHandler" />
@@ -9683,6 +10572,7 @@
         <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
       </node>
     </node>
+    <node concept="2tJIrI" id="25cxNQTtKPZ" role="jymVt" />
     <node concept="3clFb_" id="7C0FR5AKhKc" role="jymVt">
       <property role="1EzhhJ" value="false" />
       <property role="TrG5h" value="setLeftRowCreateHandler" />
@@ -9747,6 +10637,7 @@
         <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
       </node>
     </node>
+    <node concept="2tJIrI" id="25cxNQTtN15" role="jymVt" />
     <node concept="3clFb_" id="7C0FR5AKnoZ" role="jymVt">
       <property role="1EzhhJ" value="false" />
       <property role="TrG5h" value="setRightRowCreateHandler" />
@@ -9811,7 +10702,231 @@
         <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
       </node>
     </node>
-    <node concept="2tJIrI" id="3GKqtdqRW7U" role="jymVt" />
+    <node concept="2tJIrI" id="25cxNQTsjzy" role="jymVt" />
+    <node concept="3clFb_" id="25cxNQTsl_G" role="jymVt">
+      <property role="1EzhhJ" value="false" />
+      <property role="TrG5h" value="setLeftRowDeleteHandler" />
+      <node concept="3cqZAl" id="25cxNQTsl_H" role="3clF45" />
+      <node concept="3Tm1VV" id="25cxNQTsl_I" role="1B3o_S" />
+      <node concept="37vLTG" id="25cxNQTsl_J" role="3clF46">
+        <property role="TrG5h" value="handler" />
+        <node concept="3uibUv" id="25cxNQTsl_K" role="1tU5fm">
+          <ref role="3uigEE" node="25cxNQTj_G3" resolve="IRowDeleteHandler" />
+        </node>
+      </node>
+      <node concept="3clFbS" id="25cxNQTsl_L" role="3clF47">
+        <node concept="3clFbF" id="25cxNQTsl_M" role="3cqZAp">
+          <node concept="1rXfSq" id="25cxNQTsl_N" role="3clFbG">
+            <ref role="37wK5l" node="25cxNQTslAg" resolve="setLeftRowDeleteHandler" />
+            <node concept="37vLTw" id="25cxNQTsl_O" role="37wK5m">
+              <ref role="3cqZAo" node="25cxNQTsl_J" resolve="handler" />
+            </node>
+            <node concept="3cmrfG" id="25cxNQTsl_P" role="37wK5m">
+              <property role="3cmrfH" value="0" />
+            </node>
+          </node>
+        </node>
+      </node>
+    </node>
+    <node concept="3clFb_" id="25cxNQTsl_Q" role="jymVt">
+      <property role="1EzhhJ" value="false" />
+      <property role="TrG5h" value="setRightRowDeleteHandler" />
+      <node concept="3cqZAl" id="25cxNQTsl_R" role="3clF45" />
+      <node concept="3Tm1VV" id="25cxNQTsl_S" role="1B3o_S" />
+      <node concept="37vLTG" id="25cxNQTsl_T" role="3clF46">
+        <property role="TrG5h" value="handler" />
+        <node concept="3uibUv" id="25cxNQTsl_U" role="1tU5fm">
+          <ref role="3uigEE" node="25cxNQTj_G3" resolve="IRowDeleteHandler" />
+        </node>
+      </node>
+      <node concept="3clFbS" id="25cxNQTsl_V" role="3clF47">
+        <node concept="3clFbF" id="25cxNQTsl_W" role="3cqZAp">
+          <node concept="1rXfSq" id="25cxNQTsl_X" role="3clFbG">
+            <ref role="37wK5l" node="25cxNQTslAG" resolve="setRightRowDeleteHandler" />
+            <node concept="37vLTw" id="25cxNQTsl_Y" role="37wK5m">
+              <ref role="3cqZAo" node="25cxNQTsl_T" resolve="handler" />
+            </node>
+            <node concept="3cmrfG" id="25cxNQTsl_Z" role="37wK5m">
+              <property role="3cmrfH" value="0" />
+            </node>
+          </node>
+        </node>
+      </node>
+    </node>
+    <node concept="2tJIrI" id="25cxNQTsN$K" role="jymVt" />
+    <node concept="3clFb_" id="25cxNQTslA0" role="jymVt">
+      <property role="1EzhhJ" value="false" />
+      <property role="TrG5h" value="getLeftRowDeleteHandler" />
+      <node concept="3uibUv" id="25cxNQTslA1" role="3clF45">
+        <ref role="3uigEE" node="7C0FR5AJF$W" resolve="PriorizedValue" />
+        <node concept="3uibUv" id="25cxNQTslA2" role="11_B2D">
+          <ref role="3uigEE" node="25cxNQTj_G3" resolve="IRowDeleteHandler" />
+        </node>
+      </node>
+      <node concept="3Tm1VV" id="25cxNQTslA3" role="1B3o_S" />
+      <node concept="3clFbS" id="25cxNQTslA4" role="3clF47">
+        <node concept="3clFbF" id="25cxNQTslA5" role="3cqZAp">
+          <node concept="37vLTw" id="25cxNQTslA6" role="3clFbG">
+            <ref role="3cqZAo" node="25cxNQTs1JE" resolve="myLeftRowDeleteHandler" />
+          </node>
+        </node>
+      </node>
+      <node concept="2AHcQZ" id="25cxNQTslA7" role="2AJF6D">
+        <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
+      </node>
+    </node>
+    <node concept="2tJIrI" id="25cxNQTsLm3" role="jymVt" />
+    <node concept="3clFb_" id="25cxNQTslA8" role="jymVt">
+      <property role="1EzhhJ" value="false" />
+      <property role="TrG5h" value="getRightRowDeleteHandler" />
+      <node concept="3uibUv" id="25cxNQTslA9" role="3clF45">
+        <ref role="3uigEE" node="7C0FR5AJF$W" resolve="PriorizedValue" />
+        <node concept="3uibUv" id="25cxNQTslAa" role="11_B2D">
+          <ref role="3uigEE" node="25cxNQTj_G3" resolve="IRowDeleteHandler" />
+        </node>
+      </node>
+      <node concept="3Tm1VV" id="25cxNQTslAb" role="1B3o_S" />
+      <node concept="3clFbS" id="25cxNQTslAc" role="3clF47">
+        <node concept="3clFbF" id="25cxNQTslAd" role="3cqZAp">
+          <node concept="37vLTw" id="25cxNQTslAe" role="3clFbG">
+            <ref role="3cqZAo" node="25cxNQTs1JI" resolve="myRightRowDeleteHandler" />
+          </node>
+        </node>
+      </node>
+      <node concept="2AHcQZ" id="25cxNQTslAf" role="2AJF6D">
+        <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
+      </node>
+    </node>
+    <node concept="2tJIrI" id="25cxNQTsPPz" role="jymVt" />
+    <node concept="3clFb_" id="25cxNQTslAg" role="jymVt">
+      <property role="1EzhhJ" value="false" />
+      <property role="TrG5h" value="setLeftRowDeleteHandler" />
+      <node concept="3cqZAl" id="25cxNQTslAh" role="3clF45" />
+      <node concept="3Tm1VV" id="25cxNQTslAi" role="1B3o_S" />
+      <node concept="37vLTG" id="25cxNQTslAj" role="3clF46">
+        <property role="TrG5h" value="handler" />
+        <node concept="3uibUv" id="25cxNQTslAk" role="1tU5fm">
+          <ref role="3uigEE" node="25cxNQTj_G3" resolve="IRowDeleteHandler" />
+        </node>
+      </node>
+      <node concept="37vLTG" id="25cxNQTslAl" role="3clF46">
+        <property role="TrG5h" value="priority" />
+        <node concept="10Oyi0" id="25cxNQTslAm" role="1tU5fm" />
+      </node>
+      <node concept="3clFbS" id="25cxNQTslAn" role="3clF47">
+        <node concept="3clFbJ" id="25cxNQTslAo" role="3cqZAp">
+          <node concept="3clFbS" id="25cxNQTslAp" role="3clFbx">
+            <node concept="3clFbF" id="25cxNQTslAq" role="3cqZAp">
+              <node concept="37vLTI" id="25cxNQTslAr" role="3clFbG">
+                <node concept="10Nm6u" id="25cxNQTslAs" role="37vLTx" />
+                <node concept="37vLTw" id="25cxNQTslAt" role="37vLTJ">
+                  <ref role="3cqZAo" node="25cxNQTs1JE" resolve="myLeftRowDeleteHandler" />
+                </node>
+              </node>
+            </node>
+          </node>
+          <node concept="3clFbC" id="25cxNQTslAu" role="3clFbw">
+            <node concept="10Nm6u" id="25cxNQTslAv" role="3uHU7w" />
+            <node concept="37vLTw" id="25cxNQTslAw" role="3uHU7B">
+              <ref role="3cqZAo" node="25cxNQTslAj" resolve="handler" />
+            </node>
+          </node>
+          <node concept="9aQIb" id="25cxNQTslAx" role="9aQIa">
+            <node concept="3clFbS" id="25cxNQTslAy" role="9aQI4">
+              <node concept="3clFbF" id="25cxNQTslAz" role="3cqZAp">
+                <node concept="37vLTI" id="25cxNQTslA$" role="3clFbG">
+                  <node concept="37vLTw" id="25cxNQTslA_" role="37vLTJ">
+                    <ref role="3cqZAo" node="25cxNQTs1JE" resolve="myLeftRowDeleteHandler" />
+                  </node>
+                  <node concept="2ShNRf" id="25cxNQTslAA" role="37vLTx">
+                    <node concept="1pGfFk" id="25cxNQTslAB" role="2ShVmc">
+                      <ref role="37wK5l" node="7C0FR5AJFBN" resolve="PriorizedValue" />
+                      <node concept="3uibUv" id="25cxNQTslAC" role="1pMfVU">
+                        <ref role="3uigEE" node="25cxNQTj_G3" resolve="IRowDeleteHandler" />
+                      </node>
+                      <node concept="37vLTw" id="25cxNQTslAD" role="37wK5m">
+                        <ref role="3cqZAo" node="25cxNQTslAj" resolve="handler" />
+                      </node>
+                      <node concept="37vLTw" id="25cxNQTslAE" role="37wK5m">
+                        <ref role="3cqZAo" node="25cxNQTslAl" resolve="priority" />
+                      </node>
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="2AHcQZ" id="25cxNQTslAF" role="2AJF6D">
+        <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
+      </node>
+    </node>
+    <node concept="3clFb_" id="25cxNQTslAG" role="jymVt">
+      <property role="1EzhhJ" value="false" />
+      <property role="TrG5h" value="setRightRowDeleteHandler" />
+      <node concept="3cqZAl" id="25cxNQTslAH" role="3clF45" />
+      <node concept="3Tm1VV" id="25cxNQTslAI" role="1B3o_S" />
+      <node concept="37vLTG" id="25cxNQTslAJ" role="3clF46">
+        <property role="TrG5h" value="handler" />
+        <node concept="3uibUv" id="25cxNQTslAK" role="1tU5fm">
+          <ref role="3uigEE" node="25cxNQTj_G3" resolve="IRowDeleteHandler" />
+        </node>
+      </node>
+      <node concept="37vLTG" id="25cxNQTslAL" role="3clF46">
+        <property role="TrG5h" value="priority" />
+        <node concept="10Oyi0" id="25cxNQTslAM" role="1tU5fm" />
+      </node>
+      <node concept="3clFbS" id="25cxNQTslAN" role="3clF47">
+        <node concept="3clFbJ" id="25cxNQTslAO" role="3cqZAp">
+          <node concept="3clFbS" id="25cxNQTslAP" role="3clFbx">
+            <node concept="3clFbF" id="25cxNQTslAQ" role="3cqZAp">
+              <node concept="37vLTI" id="25cxNQTslAR" role="3clFbG">
+                <node concept="10Nm6u" id="25cxNQTslAS" role="37vLTx" />
+                <node concept="37vLTw" id="25cxNQTslAT" role="37vLTJ">
+                  <ref role="3cqZAo" node="25cxNQTs1JI" resolve="myRightRowDeleteHandler" />
+                </node>
+              </node>
+            </node>
+          </node>
+          <node concept="3clFbC" id="25cxNQTslAU" role="3clFbw">
+            <node concept="10Nm6u" id="25cxNQTslAV" role="3uHU7w" />
+            <node concept="37vLTw" id="25cxNQTslAW" role="3uHU7B">
+              <ref role="3cqZAo" node="25cxNQTslAJ" resolve="handler" />
+            </node>
+          </node>
+          <node concept="9aQIb" id="25cxNQTslAX" role="9aQIa">
+            <node concept="3clFbS" id="25cxNQTslAY" role="9aQI4">
+              <node concept="3clFbF" id="25cxNQTslAZ" role="3cqZAp">
+                <node concept="37vLTI" id="25cxNQTslB0" role="3clFbG">
+                  <node concept="37vLTw" id="25cxNQTslB1" role="37vLTJ">
+                    <ref role="3cqZAo" node="25cxNQTs1JI" resolve="myRightRowDeleteHandler" />
+                  </node>
+                  <node concept="2ShNRf" id="25cxNQTslB2" role="37vLTx">
+                    <node concept="1pGfFk" id="25cxNQTslB3" role="2ShVmc">
+                      <ref role="37wK5l" node="7C0FR5AJFBN" resolve="PriorizedValue" />
+                      <node concept="3uibUv" id="25cxNQTslB4" role="1pMfVU">
+                        <ref role="3uigEE" node="25cxNQTj_G3" resolve="IRowDeleteHandler" />
+                      </node>
+                      <node concept="37vLTw" id="25cxNQTslB5" role="37wK5m">
+                        <ref role="3cqZAo" node="25cxNQTslAJ" resolve="handler" />
+                      </node>
+                      <node concept="37vLTw" id="25cxNQTslB6" role="37wK5m">
+                        <ref role="3cqZAo" node="25cxNQTslAL" resolve="priority" />
+                      </node>
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="2AHcQZ" id="25cxNQTslB7" role="2AJF6D">
+        <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
+      </node>
+    </node>
+    <node concept="2tJIrI" id="25cxNQTslpO" role="jymVt" />
     <node concept="3clFb_" id="3GKqtdqRYXY" role="jymVt">
       <property role="1EzhhJ" value="false" />
       <property role="TrG5h" value="setInsertAction" />
@@ -9840,6 +10955,7 @@
         <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
       </node>
     </node>
+    <node concept="2tJIrI" id="WOxe9PsY_v" role="jymVt" />
     <node concept="3clFb_" id="3GKqtdqRYY8" role="jymVt">
       <property role="1EzhhJ" value="false" />
       <property role="TrG5h" value="setInsertBeforeAction" />
@@ -9868,6 +10984,7 @@
         <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
       </node>
     </node>
+    <node concept="2tJIrI" id="WOxe9Pt50f" role="jymVt" />
     <node concept="3clFb_" id="m_yL2MSw6a" role="jymVt">
       <property role="1EzhhJ" value="false" />
       <property role="TrG5h" value="setPasteAction" />
@@ -9882,7 +10999,7 @@
       <node concept="3clFbS" id="m_yL2MSw6f" role="3clF47">
         <node concept="3clFbF" id="m_yL2MSw6g" role="3cqZAp">
           <node concept="1rXfSq" id="m_yL2MSw6h" role="3clFbG">
-            <ref role="37wK5l" node="m_yL2MPzXT" resolve="setPasteAction" />
+            <ref role="37wK5l" node="WOxe9PtRs5" resolve="setDeleteAction" />
             <node concept="37vLTw" id="m_yL2MSw6i" role="37wK5m">
               <ref role="3cqZAo" node="m_yL2MSw6d" resolve="action" />
             </node>
@@ -9896,6 +11013,7 @@
         <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
       </node>
     </node>
+    <node concept="2tJIrI" id="WOxe9Ptc04" role="jymVt" />
     <node concept="3clFb_" id="3GKqtdqRYYi" role="jymVt">
       <property role="1EzhhJ" value="false" />
       <property role="TrG5h" value="getInsertAction" />
@@ -9917,6 +11035,7 @@
         <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
       </node>
     </node>
+    <node concept="2tJIrI" id="WOxe9Ptlsb" role="jymVt" />
     <node concept="3clFb_" id="3GKqtdqRYYq" role="jymVt">
       <property role="1EzhhJ" value="false" />
       <property role="TrG5h" value="getInsertBeforeAction" />
@@ -9938,6 +11057,7 @@
         <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
       </node>
     </node>
+    <node concept="2tJIrI" id="WOxe9PtrR2" role="jymVt" />
     <node concept="3clFb_" id="m_yL2MPtpl" role="jymVt">
       <property role="1EzhhJ" value="false" />
       <property role="TrG5h" value="getPasteAction" />
@@ -9959,6 +11079,29 @@
         <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
       </node>
     </node>
+    <node concept="2tJIrI" id="WOxe9PttOD" role="jymVt" />
+    <node concept="3clFb_" id="WOxe9PsKYl" role="jymVt">
+      <property role="1EzhhJ" value="false" />
+      <property role="TrG5h" value="getDeleteAction" />
+      <node concept="3uibUv" id="WOxe9PsKYm" role="3clF45">
+        <ref role="3uigEE" node="7C0FR5AJF$W" resolve="PriorizedValue" />
+        <node concept="3uibUv" id="WOxe9PsKYn" role="11_B2D">
+          <ref role="3uigEE" to="f4zo:~CellAction" resolve="CellAction" />
+        </node>
+      </node>
+      <node concept="3Tm1VV" id="WOxe9PsKYo" role="1B3o_S" />
+      <node concept="3clFbS" id="WOxe9PsKYp" role="3clF47">
+        <node concept="3clFbF" id="WOxe9PsKYq" role="3cqZAp">
+          <node concept="37vLTw" id="WOxe9PsKYr" role="3clFbG">
+            <ref role="3cqZAo" node="WOxe9Ps7s5" resolve="myDeleteAction" />
+          </node>
+        </node>
+      </node>
+      <node concept="2AHcQZ" id="WOxe9PsKYs" role="2AJF6D">
+        <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
+      </node>
+    </node>
+    <node concept="2tJIrI" id="WOxe9Pt$f$" role="jymVt" />
     <node concept="3clFb_" id="3GKqtdqRYYy" role="jymVt">
       <property role="1EzhhJ" value="false" />
       <property role="TrG5h" value="setInsertAction" />
@@ -10152,6 +11295,70 @@
       </node>
     </node>
     <node concept="2tJIrI" id="3GKqtdqRXb4" role="jymVt" />
+    <node concept="3clFb_" id="WOxe9PtRs5" role="jymVt">
+      <property role="1EzhhJ" value="false" />
+      <property role="TrG5h" value="setDeleteAction" />
+      <node concept="3cqZAl" id="WOxe9PtRs6" role="3clF45" />
+      <node concept="3Tm1VV" id="WOxe9PtRs7" role="1B3o_S" />
+      <node concept="37vLTG" id="WOxe9PtRs8" role="3clF46">
+        <property role="TrG5h" value="action" />
+        <node concept="3uibUv" id="WOxe9PtRs9" role="1tU5fm">
+          <ref role="3uigEE" to="f4zo:~CellAction" resolve="CellAction" />
+        </node>
+      </node>
+      <node concept="37vLTG" id="WOxe9PtRsa" role="3clF46">
+        <property role="TrG5h" value="priority" />
+        <node concept="10Oyi0" id="WOxe9PtRsb" role="1tU5fm" />
+      </node>
+      <node concept="3clFbS" id="WOxe9PtRsc" role="3clF47">
+        <node concept="3clFbJ" id="WOxe9PtRsd" role="3cqZAp">
+          <node concept="3clFbS" id="WOxe9PtRse" role="3clFbx">
+            <node concept="3clFbF" id="WOxe9PtRsf" role="3cqZAp">
+              <node concept="37vLTI" id="WOxe9PtRsg" role="3clFbG">
+                <node concept="10Nm6u" id="WOxe9PtRsh" role="37vLTx" />
+                <node concept="37vLTw" id="WOxe9PtRsi" role="37vLTJ">
+                  <ref role="3cqZAo" node="WOxe9Ps7s5" resolve="myDeleteAction" />
+                </node>
+              </node>
+            </node>
+          </node>
+          <node concept="3clFbC" id="WOxe9PtRsj" role="3clFbw">
+            <node concept="10Nm6u" id="WOxe9PtRsk" role="3uHU7w" />
+            <node concept="37vLTw" id="WOxe9PtRsl" role="3uHU7B">
+              <ref role="3cqZAo" node="WOxe9PtRs8" resolve="action" />
+            </node>
+          </node>
+          <node concept="9aQIb" id="WOxe9PtRsm" role="9aQIa">
+            <node concept="3clFbS" id="WOxe9PtRsn" role="9aQI4">
+              <node concept="3clFbF" id="WOxe9PtRso" role="3cqZAp">
+                <node concept="37vLTI" id="WOxe9PtRsp" role="3clFbG">
+                  <node concept="37vLTw" id="WOxe9PtRsq" role="37vLTJ">
+                    <ref role="3cqZAo" node="WOxe9Ps7s5" resolve="myDeleteAction" />
+                  </node>
+                  <node concept="2ShNRf" id="WOxe9PtRsr" role="37vLTx">
+                    <node concept="1pGfFk" id="WOxe9PtRss" role="2ShVmc">
+                      <ref role="37wK5l" node="7C0FR5AJFBN" resolve="PriorizedValue" />
+                      <node concept="3uibUv" id="WOxe9PtRst" role="1pMfVU">
+                        <ref role="3uigEE" to="f4zo:~CellAction" resolve="CellAction" />
+                      </node>
+                      <node concept="37vLTw" id="WOxe9PtRsu" role="37wK5m">
+                        <ref role="3cqZAo" node="WOxe9PtRs8" resolve="action" />
+                      </node>
+                      <node concept="37vLTw" id="WOxe9PtRsv" role="37wK5m">
+                        <ref role="3cqZAo" node="WOxe9PtRsa" resolve="priority" />
+                      </node>
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="2AHcQZ" id="WOxe9PtRsw" role="2AJF6D">
+        <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
+      </node>
+    </node>
     <node concept="2tJIrI" id="7C0FR5AJPqH" role="jymVt" />
     <node concept="3clFb_" id="7C0FR5AEf5A" role="jymVt">
       <property role="1EzhhJ" value="false" />
@@ -10437,6 +11644,30 @@
         <node concept="10Oyi0" id="7C0FR5BbuSV" role="1tU5fm" />
       </node>
     </node>
+    <node concept="3clFb_" id="25cxNQTlDDJ" role="jymVt">
+      <property role="TrG5h" value="getLeftRowDeleteHandler" />
+      <node concept="37vLTG" id="25cxNQTlDDK" role="3clF46">
+        <property role="TrG5h" value="x" />
+        <node concept="10Oyi0" id="25cxNQTlDDL" role="1tU5fm" />
+      </node>
+      <node concept="3uibUv" id="25cxNQTlDDM" role="3clF45">
+        <ref role="3uigEE" node="25cxNQTj_G3" resolve="IRowDeleteHandler" />
+      </node>
+      <node concept="3Tm1VV" id="25cxNQTlDDN" role="1B3o_S" />
+      <node concept="3clFbS" id="25cxNQTlDDO" role="3clF47" />
+    </node>
+    <node concept="3clFb_" id="25cxNQTlDDP" role="jymVt">
+      <property role="TrG5h" value="getRightRowDeleteHandler" />
+      <node concept="3uibUv" id="25cxNQTlDDQ" role="3clF45">
+        <ref role="3uigEE" node="25cxNQTj_G3" resolve="IRowDeleteHandler" />
+      </node>
+      <node concept="3Tm1VV" id="25cxNQTlDDR" role="1B3o_S" />
+      <node concept="3clFbS" id="25cxNQTlDDS" role="3clF47" />
+      <node concept="37vLTG" id="25cxNQTlDDT" role="3clF46">
+        <property role="TrG5h" value="y" />
+        <node concept="10Oyi0" id="25cxNQTlDDU" role="1tU5fm" />
+      </node>
+    </node>
     <node concept="3clFb_" id="5t6rCduRRoC" role="jymVt">
       <property role="TrG5h" value="replaceElements" />
       <property role="od$2w" value="false" />
@@ -10846,6 +12077,14 @@
       <node concept="3clFbS" id="1cFYsK3i7J0" role="3clF47" />
     </node>
     <node concept="2tJIrI" id="1cFYsK3i7Bs" role="jymVt" />
+    <node concept="3clFb_" id="7bbwKxst7Ez" role="jymVt">
+      <property role="1EzhhJ" value="true" />
+      <property role="TrG5h" value="getValue" />
+      <node concept="3clFbS" id="7bbwKxst7EA" role="3clF47" />
+      <node concept="3Tm1VV" id="7bbwKxst7fx" role="1B3o_S" />
+      <node concept="17QB3L" id="7bbwKxstca_" role="3clF45" />
+    </node>
+    <node concept="2tJIrI" id="7bbwKxst712" role="jymVt" />
     <node concept="3clFb_" id="3jHPIDnjwjD" role="jymVt">
       <property role="1EzhhJ" value="false" />
       <property role="TrG5h" value="clone" />
@@ -10941,6 +12180,30 @@
         </node>
       </node>
     </node>
+    <node concept="2tJIrI" id="74LepNRZ$zy" role="jymVt" />
+    <node concept="312cEg" id="74LepNRZ$5j" role="jymVt">
+      <property role="TrG5h" value="rowInsertBeforeHandler" />
+      <node concept="3Tm6S6" id="74LepNRZ$5k" role="1B3o_S" />
+      <node concept="3uibUv" id="74LepNRZ$5l" role="1tU5fm">
+        <ref role="3uigEE" node="7C0FR5AJOLF" resolve="IRowCreateHandler" />
+      </node>
+    </node>
+    <node concept="312cEg" id="dzDMr0rw9b" role="jymVt">
+      <property role="TrG5h" value="rowInsertHandler" />
+      <node concept="3Tm6S6" id="dzDMr0rucs" role="1B3o_S" />
+      <node concept="3uibUv" id="dzDMr0rw8n" role="1tU5fm">
+        <ref role="3uigEE" node="7C0FR5AJOLF" resolve="IRowCreateHandler" />
+      </node>
+    </node>
+    <node concept="2tJIrI" id="25cxNQTj$64" role="jymVt" />
+    <node concept="312cEg" id="25cxNQTj$Ak" role="jymVt">
+      <property role="TrG5h" value="rowDeleteHandler" />
+      <node concept="3Tm6S6" id="25cxNQTj$Al" role="1B3o_S" />
+      <node concept="3uibUv" id="25cxNQTj$Am" role="1tU5fm">
+        <ref role="3uigEE" node="25cxNQTj_G3" resolve="IRowDeleteHandler" />
+      </node>
+    </node>
+    <node concept="2tJIrI" id="25cxNQTj$nW" role="jymVt" />
     <node concept="2tJIrI" id="3jHPIDnjcTn" role="jymVt" />
     <node concept="3clFbW" id="7Nzu1MckCdw" role="jymVt">
       <node concept="37vLTG" id="7Nzu1MckCeF" role="3clF46">
@@ -10967,7 +12230,142 @@
         </node>
       </node>
     </node>
-    <node concept="2tJIrI" id="7Nzu1MckCcp" role="jymVt" />
+    <node concept="2tJIrI" id="74LepNRZ$N0" role="jymVt" />
+    <node concept="3clFb_" id="74LepNRZ_mF" role="jymVt">
+      <property role="TrG5h" value="setRowInsertBeforeHandler" />
+      <node concept="3clFbS" id="74LepNRZ_mG" role="3clF47">
+        <node concept="3clFbF" id="74LepNRZ_mH" role="3cqZAp">
+          <node concept="37vLTI" id="74LepNRZ_mI" role="3clFbG">
+            <node concept="37vLTw" id="74LepNRZ_mJ" role="37vLTx">
+              <ref role="3cqZAo" node="74LepNRZ_mP" resolve="handler" />
+            </node>
+            <node concept="2OqwBi" id="74LepNRZ_mK" role="37vLTJ">
+              <node concept="Xjq3P" id="74LepNRZ_mL" role="2Oq$k0" />
+              <node concept="2OwXpG" id="74LepNRZ_mM" role="2OqNvi">
+                <ref role="2Oxat5" node="74LepNRZ$5j" resolve="rowInsertBeforeHandler" />
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="3Tm1VV" id="74LepNRZ_mN" role="1B3o_S" />
+      <node concept="3cqZAl" id="74LepNRZ_mO" role="3clF45" />
+      <node concept="37vLTG" id="74LepNRZ_mP" role="3clF46">
+        <property role="TrG5h" value="handler" />
+        <node concept="3uibUv" id="74LepNRZ_mQ" role="1tU5fm">
+          <ref role="3uigEE" node="7C0FR5AJOLF" resolve="IRowCreateHandler" />
+        </node>
+      </node>
+    </node>
+    <node concept="2tJIrI" id="74LepNRZ_7u" role="jymVt" />
+    <node concept="3clFb_" id="dzDMr0rBjq" role="jymVt">
+      <property role="TrG5h" value="setRowInsertHandler" />
+      <node concept="3clFbS" id="dzDMr0rBjt" role="3clF47">
+        <node concept="3clFbF" id="dzDMr0rE8o" role="3cqZAp">
+          <node concept="37vLTI" id="dzDMr0rETs" role="3clFbG">
+            <node concept="37vLTw" id="dzDMr0rFeo" role="37vLTx">
+              <ref role="3cqZAo" node="dzDMr0rDOx" resolve="handler" />
+            </node>
+            <node concept="2OqwBi" id="dzDMr0rEou" role="37vLTJ">
+              <node concept="Xjq3P" id="dzDMr0rE8n" role="2Oq$k0" />
+              <node concept="2OwXpG" id="dzDMr0rECk" role="2OqNvi">
+                <ref role="2Oxat5" node="dzDMr0rw9b" resolve="rowInsertHandler" />
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="3Tm1VV" id="dzDMr0r_pB" role="1B3o_S" />
+      <node concept="3cqZAl" id="dzDMr0rDmb" role="3clF45" />
+      <node concept="37vLTG" id="dzDMr0rDOx" role="3clF46">
+        <property role="TrG5h" value="handler" />
+        <node concept="3uibUv" id="dzDMr0rDOw" role="1tU5fm">
+          <ref role="3uigEE" node="7C0FR5AJOLF" resolve="IRowCreateHandler" />
+        </node>
+      </node>
+    </node>
+    <node concept="2tJIrI" id="dzDMr0tvFw" role="jymVt" />
+    <node concept="3clFb_" id="74LepNRZACI" role="jymVt">
+      <property role="TrG5h" value="getRowInsertBeforeHandler" />
+      <node concept="3clFbS" id="74LepNRZACJ" role="3clF47">
+        <node concept="3clFbF" id="74LepNRZACK" role="3cqZAp">
+          <node concept="2OqwBi" id="74LepNRZACL" role="3clFbG">
+            <node concept="Xjq3P" id="74LepNRZACM" role="2Oq$k0" />
+            <node concept="2OwXpG" id="74LepNRZACN" role="2OqNvi">
+              <ref role="2Oxat5" node="74LepNRZ$5j" resolve="rowInsertBeforeHandler" />
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="3Tm1VV" id="74LepNRZACO" role="1B3o_S" />
+      <node concept="3uibUv" id="74LepNRZACP" role="3clF45">
+        <ref role="3uigEE" node="7C0FR5AJOLF" resolve="IRowCreateHandler" />
+      </node>
+    </node>
+    <node concept="2tJIrI" id="74LepNRZAom" role="jymVt" />
+    <node concept="3clFb_" id="dzDMr0twlY" role="jymVt">
+      <property role="TrG5h" value="getRowInsertHandler" />
+      <node concept="3clFbS" id="dzDMr0twm1" role="3clF47">
+        <node concept="3clFbF" id="dzDMr0twQQ" role="3cqZAp">
+          <node concept="2OqwBi" id="dzDMr0tx85" role="3clFbG">
+            <node concept="Xjq3P" id="dzDMr0twQP" role="2Oq$k0" />
+            <node concept="2OwXpG" id="dzDMr0txoy" role="2OqNvi">
+              <ref role="2Oxat5" node="dzDMr0rw9b" resolve="rowInsertHandler" />
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="3Tm1VV" id="dzDMr0tw6u" role="1B3o_S" />
+      <node concept="3uibUv" id="dzDMr0twlm" role="3clF45">
+        <ref role="3uigEE" node="7C0FR5AJOLF" resolve="IRowCreateHandler" />
+      </node>
+    </node>
+    <node concept="2tJIrI" id="25cxNQTjAuA" role="jymVt" />
+    <node concept="3clFb_" id="25cxNQTjAuB" role="jymVt">
+      <property role="TrG5h" value="setRowDeleteHandler" />
+      <node concept="3clFbS" id="25cxNQTjAuC" role="3clF47">
+        <node concept="3clFbF" id="25cxNQTjAuD" role="3cqZAp">
+          <node concept="37vLTI" id="25cxNQTjAuE" role="3clFbG">
+            <node concept="37vLTw" id="25cxNQTjAuF" role="37vLTx">
+              <ref role="3cqZAo" node="25cxNQTjAuL" resolve="handler" />
+            </node>
+            <node concept="2OqwBi" id="25cxNQTjAuG" role="37vLTJ">
+              <node concept="Xjq3P" id="25cxNQTjAuH" role="2Oq$k0" />
+              <node concept="2OwXpG" id="25cxNQTjAuI" role="2OqNvi">
+                <ref role="2Oxat5" node="25cxNQTj$Ak" resolve="rowDeleteHandler" />
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="3Tm1VV" id="25cxNQTjAuJ" role="1B3o_S" />
+      <node concept="3cqZAl" id="25cxNQTjAuK" role="3clF45" />
+      <node concept="37vLTG" id="25cxNQTjAuL" role="3clF46">
+        <property role="TrG5h" value="handler" />
+        <node concept="3uibUv" id="25cxNQTjAuM" role="1tU5fm">
+          <ref role="3uigEE" node="25cxNQTj_G3" resolve="IRowDeleteHandler" />
+        </node>
+      </node>
+    </node>
+    <node concept="2tJIrI" id="25cxNQTjAuW" role="jymVt" />
+    <node concept="3clFb_" id="25cxNQTjAuX" role="jymVt">
+      <property role="TrG5h" value="getRowDeleteHandler" />
+      <node concept="3clFbS" id="25cxNQTjAuY" role="3clF47">
+        <node concept="3clFbF" id="25cxNQTjAuZ" role="3cqZAp">
+          <node concept="2OqwBi" id="25cxNQTjAv0" role="3clFbG">
+            <node concept="Xjq3P" id="25cxNQTjAv1" role="2Oq$k0" />
+            <node concept="2OwXpG" id="25cxNQTjAv2" role="2OqNvi">
+              <ref role="2Oxat5" node="25cxNQTj$Ak" resolve="rowDeleteHandler" />
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="3Tm1VV" id="25cxNQTjAv3" role="1B3o_S" />
+      <node concept="3uibUv" id="25cxNQTjAv4" role="3clF45">
+        <ref role="3uigEE" node="25cxNQTj_G3" resolve="IRowDeleteHandler" />
+      </node>
+    </node>
+    <node concept="2tJIrI" id="25cxNQTjArg" role="jymVt" />
     <node concept="3clFb_" id="7o4gcyfBzsW" role="jymVt">
       <property role="TrG5h" value="combine" />
       <node concept="37vLTG" id="7o4gcyfBzUM" role="3clF46">
@@ -11993,21 +13391,72 @@
       <node concept="17QB3L" id="1cFYsK3mC0T" role="3clF45" />
       <node concept="3Tm1VV" id="1cFYsK3mC0U" role="1B3o_S" />
       <node concept="3clFbS" id="1cFYsK3mC0W" role="3clF47">
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-          <node concept="3cpWs3" id="1cFYsK3mCR3" role="3clFbG">
-            <node concept="2OqwBi" id="2obP5Y846Fk" role="3uHU7w">
-              <node concept="37vLTw" id="1cFYsK3mCRz" role="2Oq$k0">
+        <node concept="3cpWs8" id="3zknox6HBxm" role="3cqZAp">
+          <node concept="3cpWsn" id="3zknox6HBxp" role="3cpWs9">
+            <property role="TrG5h" value="presentation" />
+            <node concept="17QB3L" id="3zknox6HBxk" role="1tU5fm" />
+            <node concept="2OqwBi" id="3zknox6HDnd" role="33vP2m">
+              <node concept="37vLTw" id="3zknox6HCCt" role="2Oq$k0">
                 <ref role="3cqZAo" node="7C0FR5AJwUb" resolve="myNode" />
               </node>
-              <node concept="2Iv5rx" id="2obP5Y846Fl" role="2OqNvi" />
+              <node concept="2Iv5rx" id="3zknox6HDVF" role="2OqNvi" />
+            </node>
+          </node>
+        </node>
+        <node concept="3clFbJ" id="3zknox6HFTq" role="3cqZAp">
+          <node concept="3clFbS" id="3zknox6HFTs" role="3clFbx">
+            <node concept="3cpWs6" id="3zknox6HJNX" role="3cqZAp">
+              <node concept="37vLTw" id="3zknox6HLsH" role="3cqZAk">
+                <ref role="3cqZAo" node="3zknox6HBxp" resolve="presentation" />
+              </node>
             </node>
-            <node concept="Xl_RD" id="1cFYsK3mCKR" role="3uHU7B">
-              <property role="Xl_RC" value="" />
+          </node>
+          <node concept="2OqwBi" id="3zknox6HInY" role="3clFbw">
+            <node concept="37vLTw" id="3zknox6HGtx" role="2Oq$k0">
+              <ref role="3cqZAo" node="3zknox6HBxp" resolve="presentation" />
+            </node>
+            <node concept="17RvpY" id="3zknox6HJ7a" role="2OqNvi" />
+          </node>
+          <node concept="9aQIb" id="3zknox6HLZe" role="9aQIa">
+            <node concept="3clFbS" id="3zknox6HLZf" role="9aQI4">
+              <node concept="3cpWs6" id="3zknox6HMFJ" role="3cqZAp">
+                <node concept="1rXfSq" id="3zknox6HNh_" role="3cqZAk">
+                  <ref role="37wK5l" node="7bbwKxst88y" resolve="getValue" />
+                </node>
+              </node>
             </node>
           </node>
         </node>
       </node>
     </node>
+    <node concept="2tJIrI" id="7bbwKxst8Fs" role="jymVt" />
+    <node concept="3clFb_" id="7bbwKxst88y" role="jymVt">
+      <property role="TrG5h" value="getValue" />
+      <node concept="3Tm1VV" id="7bbwKxst88$" role="1B3o_S" />
+      <node concept="17QB3L" id="7bbwKxstcL8" role="3clF45" />
+      <node concept="3clFbS" id="7bbwKxst88A" role="3clF47">
+        <node concept="3clFbF" id="7bbwKxst9vD" role="3cqZAp">
+          <node concept="2OqwBi" id="7bbwKxstbbg" role="3clFbG">
+            <node concept="2OqwBi" id="7bbwKxstasv" role="2Oq$k0">
+              <node concept="2JrnkZ" id="7bbwKxst9XM" role="2Oq$k0">
+                <node concept="37vLTw" id="7bbwKxst9vC" role="2JrQYb">
+                  <ref role="3cqZAo" node="7C0FR5AJwUb" resolve="myNode" />
+                </node>
+              </node>
+              <node concept="liA8E" id="7bbwKxstaMQ" role="2OqNvi">
+                <ref role="37wK5l" to="mhbf:~SNode.getNodeId()" resolve="getNodeId" />
+              </node>
+            </node>
+            <node concept="liA8E" id="7bbwKxstbxZ" role="2OqNvi">
+              <ref role="37wK5l" to="wyt6:~Object.toString()" resolve="toString" />
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="2AHcQZ" id="7bbwKxst88B" role="2AJF6D">
+        <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
+      </node>
+    </node>
   </node>
   <node concept="312cEu" id="7C0FR5AJF$W">
     <property role="TrG5h" value="PriorizedValue" />
@@ -18568,7 +20017,6 @@
       </node>
     </node>
     <node concept="2tJIrI" id="3jHPIDnjqDr" role="jymVt" />
-    <node concept="2tJIrI" id="3jHPIDnjqI9" role="jymVt" />
     <node concept="3clFb_" id="3jHPIDnjqX3" role="jymVt">
       <property role="1EzhhJ" value="false" />
       <property role="TrG5h" value="toString" />
@@ -18606,6 +20054,7 @@
         <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
       </node>
     </node>
+    <node concept="2tJIrI" id="7bbwKxstheA" role="jymVt" />
     <node concept="3Tm1VV" id="3jHPIDnje7T" role="1B3o_S" />
     <node concept="3uibUv" id="3jHPIDnje8r" role="1zkMxy">
       <ref role="3uigEE" node="7C0FR5AJvc6" resolve="HeaderReference" />
@@ -18645,6 +20094,7 @@
         </node>
       </node>
     </node>
+    <node concept="2tJIrI" id="7bbwKxstgB7" role="jymVt" />
     <node concept="3clFb_" id="1cFYsK3i9ew" role="jymVt">
       <property role="1EzhhJ" value="false" />
       <property role="TrG5h" value="getFallbackText" />
@@ -18669,6 +20119,22 @@
         </node>
       </node>
     </node>
+    <node concept="2tJIrI" id="7bbwKxsteON" role="jymVt" />
+    <node concept="3clFb_" id="7bbwKxstfrB" role="jymVt">
+      <property role="TrG5h" value="getValue" />
+      <node concept="3Tm1VV" id="7bbwKxstfrD" role="1B3o_S" />
+      <node concept="17QB3L" id="7bbwKxstfrE" role="3clF45" />
+      <node concept="3clFbS" id="7bbwKxstfrF" role="3clF47">
+        <node concept="3clFbF" id="7bbwKxstiGp" role="3cqZAp">
+          <node concept="37vLTw" id="7bbwKxstiGo" role="3clFbG">
+            <ref role="3cqZAo" node="3jHPIDnjhas" resolve="myValue" />
+          </node>
+        </node>
+      </node>
+      <node concept="2AHcQZ" id="7bbwKxstfrG" role="2AJF6D">
+        <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
+      </node>
+    </node>
   </node>
   <node concept="312cEu" id="3jHPIDnNXPi">
     <property role="TrG5h" value="GridHeadersUtil" />
@@ -21007,6 +22473,113 @@
         </node>
       </node>
     </node>
+    <node concept="2tJIrI" id="7bbwKxsCLay" role="jymVt" />
+    <node concept="3clFb_" id="7bbwKxsCPjE" role="jymVt">
+      <property role="TrG5h" value="findIndex" />
+      <node concept="3clFbS" id="7bbwKxsCPjH" role="3clF47">
+        <node concept="1Dw8fO" id="7bbwKxsDnBs" role="3cqZAp">
+          <node concept="3cpWsn" id="7bbwKxsDnBt" role="1Duv9x">
+            <property role="TrG5h" value="x" />
+            <node concept="10Oyi0" id="7bbwKxsDoX0" role="1tU5fm" />
+            <node concept="3cmrfG" id="7bbwKxsDspu" role="33vP2m">
+              <property role="3cmrfH" value="0" />
+            </node>
+          </node>
+          <node concept="3clFbS" id="7bbwKxsDnBu" role="2LFqv$">
+            <node concept="1Dw8fO" id="7bbwKxsDCQw" role="3cqZAp">
+              <node concept="3cpWsn" id="7bbwKxsDCQx" role="1Duv9x">
+                <property role="TrG5h" value="y" />
+                <node concept="10Oyi0" id="7bbwKxsDCQy" role="1tU5fm" />
+                <node concept="3cmrfG" id="7bbwKxsDCQz" role="33vP2m">
+                  <property role="3cmrfH" value="0" />
+                </node>
+              </node>
+              <node concept="3clFbS" id="7bbwKxsDCQ$" role="2LFqv$">
+                <node concept="3clFbJ" id="7bbwKxsDH30" role="3cqZAp">
+                  <node concept="17R0WA" id="7bbwKxsDRuW" role="3clFbw">
+                    <node concept="2OqwBi" id="7bbwKxsDU7y" role="3uHU7w">
+                      <node concept="37vLTw" id="7bbwKxsDSN9" role="2Oq$k0">
+                        <ref role="3cqZAo" node="7bbwKxsCR9v" resolve="header" />
+                      </node>
+                      <node concept="liA8E" id="7bbwKxsDVC0" role="2OqNvi">
+                        <ref role="37wK5l" node="7C0FR5AJERW" resolve="getReference" />
+                      </node>
+                    </node>
+                    <node concept="1rXfSq" id="7bbwKxsDIvK" role="3uHU7B">
+                      <ref role="37wK5l" to="sse1:7C0FR5ANIsk" resolve="getElement" />
+                      <node concept="37vLTw" id="7bbwKxsDKWF" role="37wK5m">
+                        <ref role="3cqZAo" node="7bbwKxsDnBt" resolve="x" />
+                      </node>
+                      <node concept="37vLTw" id="7bbwKxsDNJS" role="37wK5m">
+                        <ref role="3cqZAo" node="7bbwKxsDCQx" resolve="y" />
+                      </node>
+                    </node>
+                  </node>
+                  <node concept="3clFbS" id="7bbwKxsDH32" role="3clFbx">
+                    <node concept="3cpWs6" id="7bbwKxsDXQH" role="3cqZAp">
+                      <node concept="1Ls8ON" id="7bbwKxsDZxc" role="3cqZAk">
+                        <node concept="37vLTw" id="7bbwKxsE0OS" role="1Lso8e">
+                          <ref role="3cqZAo" node="7bbwKxsDnBt" resolve="x" />
+                        </node>
+                        <node concept="37vLTw" id="7bbwKxsE2n3" role="1Lso8e">
+                          <ref role="3cqZAo" node="7bbwKxsDCQx" resolve="y" />
+                        </node>
+                      </node>
+                    </node>
+                  </node>
+                </node>
+              </node>
+              <node concept="3eOVzh" id="7bbwKxsDCQ_" role="1Dwp0S">
+                <node concept="2OqwBi" id="7bbwKxsDCQA" role="3uHU7w">
+                  <node concept="Xjq3P" id="7bbwKxsDCQB" role="2Oq$k0" />
+                  <node concept="liA8E" id="7bbwKxsDCQC" role="2OqNvi">
+                    <ref role="37wK5l" to="sse1:7C0FR5ANIrH" resolve="getSizeY" />
+                  </node>
+                </node>
+                <node concept="37vLTw" id="7bbwKxsDCQD" role="3uHU7B">
+                  <ref role="3cqZAo" node="7bbwKxsDCQx" resolve="y" />
+                </node>
+              </node>
+              <node concept="3uNrnE" id="7bbwKxsDCQE" role="1Dwrff">
+                <node concept="37vLTw" id="7bbwKxsDCQF" role="2$L3a6">
+                  <ref role="3cqZAo" node="7bbwKxsDCQx" resolve="y" />
+                </node>
+              </node>
+            </node>
+          </node>
+          <node concept="3eOVzh" id="7bbwKxsDwWT" role="1Dwp0S">
+            <node concept="2OqwBi" id="7bbwKxsD$CZ" role="3uHU7w">
+              <node concept="Xjq3P" id="7bbwKxsDyB5" role="2Oq$k0" />
+              <node concept="liA8E" id="7bbwKxsDAfd" role="2OqNvi">
+                <ref role="37wK5l" to="sse1:7C0FR5ANIrA" resolve="getSizeX" />
+              </node>
+            </node>
+            <node concept="37vLTw" id="7bbwKxsDuCF" role="3uHU7B">
+              <ref role="3cqZAo" node="7bbwKxsDnBt" resolve="x" />
+            </node>
+          </node>
+          <node concept="3uNrnE" id="7bbwKxsDBLQ" role="1Dwrff">
+            <node concept="37vLTw" id="7bbwKxsDBLS" role="2$L3a6">
+              <ref role="3cqZAo" node="7bbwKxsDnBt" resolve="x" />
+            </node>
+          </node>
+        </node>
+        <node concept="3cpWs6" id="7bbwKxsE5N8" role="3cqZAp">
+          <node concept="10Nm6u" id="7bbwKxsE7Ju" role="3cqZAk" />
+        </node>
+      </node>
+      <node concept="3Tm1VV" id="7bbwKxsCMNQ" role="1B3o_S" />
+      <node concept="1LlUBW" id="7bbwKxsCO9I" role="3clF45">
+        <node concept="10Oyi0" id="7bbwKxsCPaG" role="1Lm7xW" />
+        <node concept="10Oyi0" id="7bbwKxsCPjA" role="1Lm7xW" />
+      </node>
+      <node concept="37vLTG" id="7bbwKxsCR9v" role="3clF46">
+        <property role="TrG5h" value="header" />
+        <node concept="3uibUv" id="7bbwKxsCR9u" role="1tU5fm">
+          <ref role="3uigEE" node="7C0FR5AJvFJ" resolve="Header" />
+        </node>
+      </node>
+    </node>
     <node concept="2tJIrI" id="5Ec8_bm69RJ" role="jymVt" />
     <node concept="3clFb_" id="5fuw_4Q$ES1" role="jymVt">
       <property role="TrG5h" value="transposeCloned" />
@@ -21688,25 +23261,49 @@
       </node>
       <node concept="3Tm1VV" id="2c3czgpQM9s" role="1B3o_S" />
       <node concept="3clFbS" id="2c3czgpQM9t" role="3clF47">
-        <node concept="3clFbF" id="2c3czgpQMtz" role="3cqZAp">
-          <node concept="1rXfSq" id="2c3czgq0GBS" role="3clFbG">
-            <ref role="37wK5l" node="2c3czgq0rYU" resolve="trackCreatedCell" />
-            <node concept="2ShNRf" id="2c3czgpQMtx" role="37wK5m">
-              <node concept="1pGfFk" id="2c3czgpQMUa" role="2ShVmc">
+        <node concept="3cpWs8" id="74LepNT2BQ6" role="3cqZAp">
+          <node concept="3cpWsn" id="74LepNT2BQ7" role="3cpWs9">
+            <property role="TrG5h" value="cell" />
+            <node concept="3uibUv" id="74LepNT2_Br" role="1tU5fm">
+              <ref role="3uigEE" to="hm5v:4db20qfqb8U" resolve="RowEndCell" />
+            </node>
+            <node concept="2ShNRf" id="74LepNT2BQ8" role="33vP2m">
+              <node concept="1pGfFk" id="74LepNT2BQ9" role="2ShVmc">
                 <ref role="37wK5l" to="hm5v:4db20qfqbdz" resolve="RowEndCell" />
-                <node concept="37vLTw" id="2c3czgpQMUL" role="37wK5m">
+                <node concept="37vLTw" id="74LepNT2BQa" role="37wK5m">
                   <ref role="3cqZAo" node="RywcYwuxY0" resolve="myContext" />
                 </node>
-                <node concept="37vLTw" id="2c3czgpQMWX" role="37wK5m">
+                <node concept="37vLTw" id="74LepNT2BQb" role="37wK5m">
                   <ref role="3cqZAo" node="RywcYwuxY3" resolve="myNode" />
                 </node>
-                <node concept="37vLTw" id="2c3czgpQN1S" role="37wK5m">
+                <node concept="37vLTw" id="74LepNT2BQc" role="37wK5m">
                   <ref role="3cqZAo" node="2c3czgpQMsX" resolve="leftEnd" />
                 </node>
               </node>
             </node>
           </node>
         </node>
+        <node concept="3clFbF" id="74LepNT2CE8" role="3cqZAp">
+          <node concept="2OqwBi" id="74LepNT2DW7" role="3clFbG">
+            <node concept="37vLTw" id="74LepNT2CE6" role="2Oq$k0">
+              <ref role="3cqZAo" node="74LepNT2BQ7" resolve="cell" />
+            </node>
+            <node concept="liA8E" id="74LepNT2EQK" role="2OqNvi">
+              <ref role="37wK5l" to="hm5v:74LepNSZlQy" resolve="initializeActions" />
+              <node concept="37vLTw" id="74LepNT2HjO" role="37wK5m">
+                <ref role="3cqZAo" node="2c3czgpWV_r" resolve="myContextGrid" />
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="3clFbF" id="2c3czgpQMtz" role="3cqZAp">
+          <node concept="1rXfSq" id="2c3czgq0GBS" role="3clFbG">
+            <ref role="37wK5l" node="2c3czgq0rYU" resolve="trackCreatedCell" />
+            <node concept="37vLTw" id="74LepNT2BQd" role="37wK5m">
+              <ref role="3cqZAo" node="74LepNT2BQ7" resolve="cell" />
+            </node>
+          </node>
+        </node>
       </node>
     </node>
     <node concept="3Tm1VV" id="RywcYwuxY$" role="1B3o_S" />
@@ -22402,6 +23999,22 @@
         <node concept="3Tqbb2" id="RywcYwuy0B" role="1tU5fm" />
       </node>
     </node>
+    <node concept="2tJIrI" id="74LepNRyaSr" role="jymVt" />
+    <node concept="3clFb_" id="74LepNRyxmo" role="jymVt">
+      <property role="TrG5h" value="getGrid" />
+      <node concept="3clFbS" id="74LepNRyxmr" role="3clF47">
+        <node concept="3clFbF" id="74LepNRy$Ry" role="3cqZAp">
+          <node concept="37vLTw" id="74LepNRy$Rx" role="3clFbG">
+            <ref role="3cqZAo" node="RywcYwuxZY" resolve="myGrid" />
+          </node>
+        </node>
+      </node>
+      <node concept="3Tm1VV" id="74LepNRyshl" role="1B3o_S" />
+      <node concept="3uibUv" id="74LepNRyvDz" role="3clF45">
+        <ref role="3uigEE" node="7C0FR5Aonzr" resolve="Grid" />
+      </node>
+    </node>
+    <node concept="2tJIrI" id="74LepNRyeJX" role="jymVt" />
     <node concept="3clFb_" id="1U60oYw16Ov" role="jymVt">
       <property role="1EzhhJ" value="false" />
       <property role="TrG5h" value="getSizeX" />
@@ -22420,6 +24033,7 @@
         </node>
       </node>
     </node>
+    <node concept="2tJIrI" id="74LepNRyi63" role="jymVt" />
     <node concept="3clFb_" id="1U60oYw16O$" role="jymVt">
       <property role="1EzhhJ" value="false" />
       <property role="TrG5h" value="getSizeY" />
@@ -22438,6 +24052,7 @@
         </node>
       </node>
     </node>
+    <node concept="2tJIrI" id="74LepNRylsb" role="jymVt" />
     <node concept="3clFb_" id="1U60oYw1gb$" role="jymVt">
       <property role="1EzhhJ" value="false" />
       <property role="TrG5h" value="setSize" />
@@ -22573,6 +24188,48 @@
         </node>
       </node>
     </node>
+    <node concept="2tJIrI" id="74LepNRpRoA" role="jymVt" />
+    <node concept="3clFb_" id="74LepNRpUUl" role="jymVt">
+      <property role="1EzhhJ" value="false" />
+      <property role="TrG5h" value="setCell" />
+      <node concept="37vLTG" id="74LepNRpUUm" role="3clF46">
+        <property role="TrG5h" value="x" />
+        <node concept="10Oyi0" id="74LepNRpUUn" role="1tU5fm" />
+      </node>
+      <node concept="37vLTG" id="74LepNRpUUo" role="3clF46">
+        <property role="TrG5h" value="y" />
+        <node concept="10Oyi0" id="74LepNRpUUp" role="1tU5fm" />
+      </node>
+      <node concept="37vLTG" id="74LepNRq3jV" role="3clF46">
+        <property role="TrG5h" value="element" />
+        <node concept="3uibUv" id="74LepNRq6hm" role="1tU5fm">
+          <ref role="3uigEE" node="7C0FR5Aonyd" resolve="IGridElement" />
+        </node>
+      </node>
+      <node concept="3cqZAl" id="74LepNRpUUs" role="3clF45" />
+      <node concept="3Tm1VV" id="74LepNRpUUt" role="1B3o_S" />
+      <node concept="3clFbS" id="74LepNRpUUu" role="3clF47">
+        <node concept="3clFbF" id="74LepNRpUUv" role="3cqZAp">
+          <node concept="2OqwBi" id="74LepNRpUUw" role="3clFbG">
+            <node concept="37vLTw" id="74LepNRpUUx" role="2Oq$k0">
+              <ref role="3cqZAo" node="RywcYwuxZY" resolve="myGrid" />
+            </node>
+            <node concept="liA8E" id="74LepNRpUUy" role="2OqNvi">
+              <ref role="37wK5l" node="3GKqtdqYBmu" resolve="replaceElement" />
+              <node concept="37vLTw" id="74LepNRpUUz" role="37wK5m">
+                <ref role="3cqZAo" node="74LepNRpUUm" resolve="x" />
+              </node>
+              <node concept="37vLTw" id="74LepNRpUU$" role="37wK5m">
+                <ref role="3cqZAo" node="74LepNRpUUo" resolve="y" />
+              </node>
+              <node concept="37vLTw" id="74LepNRqeiK" role="37wK5m">
+                <ref role="3cqZAo" node="74LepNRq3jV" resolve="element" />
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+    </node>
     <node concept="2tJIrI" id="291OoVEMNa2" role="jymVt" />
     <node concept="3clFb_" id="291OoVEMSF_" role="jymVt">
       <property role="1EzhhJ" value="false" />
@@ -23856,6 +25513,7 @@
         </node>
       </node>
     </node>
+    <node concept="2tJIrI" id="74LepNT1OVq" role="jymVt" />
     <node concept="3Tm1VV" id="RywcYwuy3d" role="1B3o_S" />
     <node concept="3uibUv" id="RywcYwuy3e" role="EKbjA">
       <ref role="3uigEE" node="RywcYwuy7j" resolve="ITableGrid" />
@@ -23863,6 +25521,88 @@
     <node concept="3uibUv" id="3GKqtdpMQqx" role="1zkMxy">
       <ref role="3uigEE" node="3GKqtdpMCY$" resolve="GridAdapterBase" />
     </node>
+    <node concept="3clFb_" id="74LepNT1I1e" role="jymVt">
+      <property role="TrG5h" value="setEndCellAction" />
+      <node concept="3Tm1VV" id="74LepNT1I1g" role="1B3o_S" />
+      <node concept="3cqZAl" id="74LepNT1I1h" role="3clF45" />
+      <node concept="37vLTG" id="74LepNT1I1i" role="3clF46">
+        <property role="TrG5h" value="type" />
+        <node concept="3uibUv" id="74LepNT1I1j" role="1tU5fm">
+          <ref role="3uigEE" to="f4zo:~CellActionType" resolve="CellActionType" />
+        </node>
+      </node>
+      <node concept="37vLTG" id="74LepNT1I1k" role="3clF46">
+        <property role="TrG5h" value="creator" />
+        <node concept="1ajhzC" id="74LepNT1I1l" role="1tU5fm">
+          <node concept="3uibUv" id="74LepNT1I1m" role="1ajl9A">
+            <ref role="3uigEE" to="f4zo:~CellAction" resolve="CellAction" />
+          </node>
+          <node concept="3uibUv" id="74LepNT1I1n" role="1ajw0F">
+            <ref role="3uigEE" to="f4zo:~EditorCell" resolve="EditorCell" />
+          </node>
+          <node concept="10P_77" id="74LepNT1I1o" role="1ajw0F" />
+        </node>
+      </node>
+      <node concept="3clFbS" id="74LepNT1I1q" role="3clF47">
+        <node concept="3clFbF" id="74LepNT1VUM" role="3cqZAp">
+          <node concept="2OqwBi" id="74LepNT1XDI" role="3clFbG">
+            <node concept="37vLTw" id="74LepNT1VUL" role="2Oq$k0">
+              <ref role="3cqZAo" node="RywcYwuxZY" resolve="myGrid" />
+            </node>
+            <node concept="liA8E" id="74LepNT1Zwx" role="2OqNvi">
+              <ref role="37wK5l" node="74LepNSXX9A" resolve="setEndCellAction" />
+              <node concept="37vLTw" id="74LepNT22mV" role="37wK5m">
+                <ref role="3cqZAo" node="74LepNT1I1i" resolve="type" />
+              </node>
+              <node concept="37vLTw" id="74LepNT265T" role="37wK5m">
+                <ref role="3cqZAo" node="74LepNT1I1k" resolve="creator" />
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="2AHcQZ" id="74LepNT1I1r" role="2AJF6D">
+        <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
+      </node>
+    </node>
+    <node concept="2tJIrI" id="74LepNT1SnA" role="jymVt" />
+    <node concept="3clFb_" id="74LepNT1I1s" role="jymVt">
+      <property role="TrG5h" value="getEndCellAction" />
+      <node concept="3Tm1VV" id="74LepNT1I1u" role="1B3o_S" />
+      <node concept="37vLTG" id="74LepNT1I1v" role="3clF46">
+        <property role="TrG5h" value="type" />
+        <node concept="3uibUv" id="74LepNT1I1w" role="1tU5fm">
+          <ref role="3uigEE" to="f4zo:~CellActionType" resolve="CellActionType" />
+        </node>
+      </node>
+      <node concept="1ajhzC" id="74LepNT1I1x" role="3clF45">
+        <node concept="3uibUv" id="74LepNT1I1y" role="1ajl9A">
+          <ref role="3uigEE" to="f4zo:~CellAction" resolve="CellAction" />
+        </node>
+        <node concept="3uibUv" id="74LepNT1I1z" role="1ajw0F">
+          <ref role="3uigEE" to="f4zo:~EditorCell" resolve="EditorCell" />
+        </node>
+        <node concept="10P_77" id="74LepNT1I1$" role="1ajw0F" />
+      </node>
+      <node concept="3clFbS" id="74LepNT1I1A" role="3clF47">
+        <node concept="3clFbF" id="74LepNT28F9" role="3cqZAp">
+          <node concept="2OqwBi" id="74LepNT29_Q" role="3clFbG">
+            <node concept="37vLTw" id="74LepNT28F8" role="2Oq$k0">
+              <ref role="3cqZAo" node="RywcYwuxZY" resolve="myGrid" />
+            </node>
+            <node concept="liA8E" id="74LepNT2d5t" role="2OqNvi">
+              <ref role="37wK5l" node="74LepNTa7UD" resolve="getEndCellAction" />
+              <node concept="37vLTw" id="74LepNT2fH5" role="37wK5m">
+                <ref role="3cqZAo" node="74LepNT1I1v" resolve="type" />
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="2AHcQZ" id="74LepNT1I1B" role="2AJF6D">
+        <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
+      </node>
+    </node>
   </node>
   <node concept="312cEu" id="RywcYwuy3f">
     <property role="TrG5h" value="GridFinalizer" />
@@ -23971,54 +25711,26 @@
             </node>
           </node>
         </node>
-        <node concept="3cpWs8" id="2c3czgpRXce" role="3cqZAp">
-          <node concept="3cpWsn" id="2c3czgpRXch" role="3cpWs9">
-            <property role="TrG5h" value="hasRowHeaders" />
-            <node concept="10P_77" id="2c3czgpRXcc" role="1tU5fm" />
-            <node concept="3eOSWO" id="2c3czgpS3ry" role="33vP2m">
-              <node concept="3cmrfG" id="2c3czgpS3rG" role="3uHU7w">
-                <property role="3cmrfH" value="0" />
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-              <node concept="2OqwBi" id="2c3czgpS1Bf" role="3uHU7B">
-                <node concept="37vLTw" id="2c3czgpS1fv" role="2Oq$k0">
-                  <ref role="3cqZAo" node="RywcYwuy3g" resolve="myGrid" />
-                </node>
-                <node concept="liA8E" id="2c3czgpS2Qi" role="2OqNvi">
-                  <ref role="37wK5l" node="3jHPIDnMh7s" resolve="getRowHeadersSizeX" />
-                </node>
-              </node>
-            </node>
-          </node>
-        </node>
         <node concept="3clFbF" id="RywcYwuy3G" role="3cqZAp">
           <node concept="1rXfSq" id="RywcYwuy3H" role="3clFbG">
             <ref role="37wK5l" node="RywcYwuy4z" resolve="mergeHeadersIntoGrid" />
           </node>
         </node>
-        <node concept="3clFbJ" id="2c3czgpRTev" role="3cqZAp">
-          <node concept="3clFbS" id="2c3czgpRTey" role="3clFbx">
-            <node concept="3clFbF" id="2c3czgpRTcu" role="3cqZAp">
-              <node concept="1rXfSq" id="2c3czgpRTct" role="3clFbG">
-                <ref role="37wK5l" node="2c3czgpPJfB" resolve="addRowEndCells" />
-                <node concept="37vLTw" id="2c3czgpRWLl" role="37wK5m">
-                  <ref role="3cqZAo" node="2c3czgpRVd_" resolve="columnHeaderSizeY" />
-                </node>
-                <node concept="3fqX7Q" id="m_yL2MFBBh" role="37wK5m">
-                  <node concept="37vLTw" id="m_yL2MFBGk" role="3fr31v">
-                    <ref role="3cqZAo" node="m_yL2MDfFl" resolve="hideLeftRowEndCells" />
-                  </node>
-                </node>
-                <node concept="3fqX7Q" id="m_yL2MFBMd" role="37wK5m">
-                  <node concept="37vLTw" id="m_yL2MFBRs" role="3fr31v">
-                    <ref role="3cqZAo" node="m_yL2MFyHf" resolve="hideRightRowEndCells" />
-                  </node>
-                </node>
+        <node concept="3clFbF" id="2c3czgpRTcu" role="3cqZAp">
+          <node concept="1rXfSq" id="2c3czgpRTct" role="3clFbG">
+            <ref role="37wK5l" node="2c3czgpPJfB" resolve="addRowEndCells" />
+            <node concept="37vLTw" id="2c3czgpRWLl" role="37wK5m">
+              <ref role="3cqZAo" node="2c3czgpRVd_" resolve="columnHeaderSizeY" />
+            </node>
+            <node concept="3fqX7Q" id="m_yL2MFBBh" role="37wK5m">
+              <node concept="37vLTw" id="m_yL2MFBGk" role="3fr31v">
+                <ref role="3cqZAo" node="m_yL2MDfFl" resolve="hideLeftRowEndCells" />
               </node>
             </node>
-          </node>
-          <node concept="3fqX7Q" id="2c3czgpT8h4" role="3clFbw">
-            <node concept="37vLTw" id="2c3czgpT8h6" role="3fr31v">
-              <ref role="3cqZAo" node="2c3czgpRXch" resolve="hasRowHeaders" />
+            <node concept="3fqX7Q" id="m_yL2MFBMd" role="37wK5m">
+              <node concept="37vLTw" id="m_yL2MFBRs" role="3fr31v">
+                <ref role="3cqZAo" node="m_yL2MFyHf" resolve="hideRightRowEndCells" />
+              </node>
             </node>
           </node>
         </node>
@@ -24027,15 +25739,6 @@
             <ref role="37wK5l" node="3GKqtdr6d3H" resolve="finalizeEditorCellLeafs" />
           </node>
         </node>
-        <node concept="1X3_iC" id="5GwePVE5EKn" role="lGtFl">
-          <property role="3V$3am" value="statement" />
-          <property role="3V$3ak" value="f3061a53-9226-4cc5-a443-f952ceaf5816/1068580123136/1068581517665" />
-          <node concept="3clFbF" id="RywcYwuy3I" role="8Wnug">
-            <node concept="1rXfSq" id="RywcYwuy3J" role="3clFbG">
-              <ref role="37wK5l" node="RywcYwuy3L" resolve="replaceUnusedPositions" />
-            </node>
-          </node>
-        </node>
         <node concept="3clFbF" id="6OcqZnLGmzL" role="3cqZAp">
           <node concept="2YIFZM" id="6OcqZnLGmUG" role="3clFbG">
             <ref role="37wK5l" to="hm5v:6OcqZnLG9gO" resolve="sout" />
@@ -24056,7 +25759,7 @@
     <node concept="3clFb_" id="3GKqtdr6d3H" role="jymVt">
       <property role="TrG5h" value="finalizeEditorCellLeafs" />
       <node concept="3cqZAl" id="3GKqtdr6d3J" role="3clF45" />
-      <node concept="3Tm6S6" id="3GKqtdr6hiU" role="1B3o_S" />
+      <node concept="3Tm1VV" id="WOxe9P_T19" role="1B3o_S" />
       <node concept="3clFbS" id="3GKqtdr6d3L" role="3clF47">
         <node concept="1Dw8fO" id="3GKqtdr6w10" role="3cqZAp">
           <node concept="3clFbS" id="3GKqtdr6w11" role="2LFqv$">
@@ -24433,6 +26136,113 @@
                         </node>
                       </node>
                     </node>
+                    <node concept="3clFbH" id="WOxe9Psoqx" role="3cqZAp" />
+                    <node concept="3SKdUt" id="WOxe9PsoAL" role="3cqZAp">
+                      <node concept="1PaTwC" id="WOxe9PsoAM" role="1aUNEU">
+                        <node concept="3oM_SD" id="25cxNQTOw6o" role="1PaTwD">
+                          <property role="3oM_SC" value="delete" />
+                        </node>
+                      </node>
+                    </node>
+                    <node concept="3cpWs8" id="WOxe9PsoAP" role="3cqZAp">
+                      <node concept="3cpWsn" id="WOxe9PsoAQ" role="3cpWs9">
+                        <property role="TrG5h" value="deleteAction" />
+                        <node concept="3uibUv" id="WOxe9PsoAR" role="1tU5fm">
+                          <ref role="3uigEE" node="7C0FR5AJF$W" resolve="PriorizedValue" />
+                          <node concept="3uibUv" id="WOxe9PsoAS" role="11_B2D">
+                            <ref role="3uigEE" to="f4zo:~CellAction" resolve="CellAction" />
+                          </node>
+                        </node>
+                        <node concept="2OqwBi" id="WOxe9PsoAT" role="33vP2m">
+                          <node concept="37vLTw" id="WOxe9PsoAU" role="2Oq$k0">
+                            <ref role="3cqZAo" node="3GKqtdr6x3_" resolve="element" />
+                          </node>
+                          <node concept="liA8E" id="WOxe9PsoAV" role="2OqNvi">
+                            <ref role="37wK5l" node="WOxe9PrWFB" resolve="getDeleteAction" />
+                          </node>
+                        </node>
+                      </node>
+                    </node>
+                    <node concept="3clFbJ" id="WOxe9PsoAW" role="3cqZAp">
+                      <node concept="3clFbS" id="WOxe9PsoAX" role="3clFbx">
+                        <node concept="3clFbJ" id="WOxe9PsoAY" role="3cqZAp">
+                          <node concept="3clFbS" id="WOxe9PsoAZ" role="3clFbx">
+                            <node concept="3clFbF" id="WOxe9PsoB0" role="3cqZAp">
+                              <node concept="2OqwBi" id="WOxe9PsoB1" role="3clFbG">
+                                <node concept="37vLTw" id="WOxe9PsoB2" role="2Oq$k0">
+                                  <ref role="3cqZAo" node="3GKqtdr6zaw" resolve="cell" />
+                                </node>
+                                <node concept="liA8E" id="WOxe9PsoB3" role="2OqNvi">
+                                  <ref role="37wK5l" to="f4zo:~EditorCell.setAction(jetbrains.mps.openapi.editor.cells.CellActionType,jetbrains.mps.openapi.editor.cells.CellAction)" resolve="setAction" />
+                                  <node concept="Rm8GO" id="WOxe9PsBn7" role="37wK5m">
+                                    <ref role="Rm8GQ" to="f4zo:~CellActionType.DELETE" resolve="DELETE" />
+                                    <ref role="1Px2BO" to="f4zo:~CellActionType" resolve="CellActionType" />
+                                  </node>
+                                  <node concept="2OqwBi" id="WOxe9PsoB5" role="37wK5m">
+                                    <node concept="37vLTw" id="WOxe9PsoB6" role="2Oq$k0">
+                                      <ref role="3cqZAo" node="WOxe9PsoAQ" resolve="deleteAction" />
+                                    </node>
+                                    <node concept="liA8E" id="WOxe9PsoB7" role="2OqNvi">
+                                      <ref role="37wK5l" node="7C0FR5Bc9AB" resolve="getValue" />
+                                    </node>
+                                  </node>
+                                </node>
+                              </node>
+                            </node>
+                          </node>
+                          <node concept="22lmx$" id="WOxe9PsoB8" role="3clFbw">
+                            <node concept="2d3UOw" id="WOxe9PsoB9" role="3uHU7w">
+                              <node concept="3cmrfG" id="WOxe9PsoBa" role="3uHU7w">
+                                <property role="3cmrfH" value="0" />
+                              </node>
+                              <node concept="2OqwBi" id="WOxe9PsoBb" role="3uHU7B">
+                                <node concept="37vLTw" id="WOxe9PsoBc" role="2Oq$k0">
+                                  <ref role="3cqZAo" node="WOxe9PsoAQ" resolve="deleteAction" />
+                                </node>
+                                <node concept="liA8E" id="WOxe9PsoBd" role="2OqNvi">
+                                  <ref role="37wK5l" node="7C0FR5Bcbrf" resolve="getPriority" />
+                                </node>
+                              </node>
+                            </node>
+                            <node concept="3clFbC" id="WOxe9PsoBe" role="3uHU7B">
+                              <node concept="2OqwBi" id="WOxe9PsoBf" role="3uHU7B">
+                                <node concept="37vLTw" id="WOxe9PsoBg" role="2Oq$k0">
+                                  <ref role="3cqZAo" node="3GKqtdr6zaw" resolve="cell" />
+                                </node>
+                                <node concept="liA8E" id="WOxe9PsoBh" role="2OqNvi">
+                                  <ref role="37wK5l" to="f4zo:~EditorCell.getAction(jetbrains.mps.openapi.editor.cells.CellActionType)" resolve="getAction" />
+                                  <node concept="Rm8GO" id="WOxe9Psz8S" role="37wK5m">
+                                    <ref role="Rm8GQ" to="f4zo:~CellActionType.DELETE" resolve="DELETE" />
+                                    <ref role="1Px2BO" to="f4zo:~CellActionType" resolve="CellActionType" />
+                                  </node>
+                                </node>
+                              </node>
+                              <node concept="10Nm6u" id="WOxe9PsoBj" role="3uHU7w" />
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                      <node concept="1Wc70l" id="WOxe9PsoBk" role="3clFbw">
+                        <node concept="3y3z36" id="WOxe9PsoBl" role="3uHU7w">
+                          <node concept="10Nm6u" id="WOxe9PsoBm" role="3uHU7w" />
+                          <node concept="2OqwBi" id="WOxe9PsoBn" role="3uHU7B">
+                            <node concept="37vLTw" id="WOxe9PsoBo" role="2Oq$k0">
+                              <ref role="3cqZAo" node="WOxe9PsoAQ" resolve="deleteAction" />
+                            </node>
+                            <node concept="liA8E" id="WOxe9PsoBp" role="2OqNvi">
+                              <ref role="37wK5l" node="7C0FR5Bc9AB" resolve="getValue" />
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="3y3z36" id="WOxe9PsoBq" role="3uHU7B">
+                          <node concept="37vLTw" id="WOxe9PsoBr" role="3uHU7B">
+                            <ref role="3cqZAo" node="WOxe9PsoAQ" resolve="deleteAction" />
+                          </node>
+                          <node concept="10Nm6u" id="WOxe9PsoBs" role="3uHU7w" />
+                        </node>
+                      </node>
+                    </node>
+                    <node concept="3clFbH" id="WOxe9PsowC" role="3cqZAp" />
                     <node concept="3clFbH" id="7t31QeZCO1T" role="3cqZAp" />
                     <node concept="3SKdUt" id="7t31QeZCOMU" role="3cqZAp">
                       <node concept="1PaTwC" id="7WTFIQIcYnO" role="1aUNEU">
@@ -25619,6 +27429,146 @@
                 </node>
               </node>
             </node>
+            <node concept="3clFbH" id="dzDMr0uPCa" role="3cqZAp" />
+            <node concept="3cpWs8" id="74LepNS08dR" role="3cqZAp">
+              <node concept="3cpWsn" id="74LepNS08dS" role="3cpWs9">
+                <property role="TrG5h" value="rowInsertBeforeHandler" />
+                <node concept="3uibUv" id="74LepNS08dT" role="1tU5fm">
+                  <ref role="3uigEE" node="7C0FR5AJOLF" resolve="IRowCreateHandler" />
+                </node>
+                <node concept="2OqwBi" id="74LepNS08dU" role="33vP2m">
+                  <node concept="37vLTw" id="74LepNS08dV" role="2Oq$k0">
+                    <ref role="3cqZAo" node="RywcYwuy6M" resolve="header" />
+                  </node>
+                  <node concept="liA8E" id="74LepNS08dW" role="2OqNvi">
+                    <ref role="37wK5l" node="74LepNRZACI" resolve="getRowInsertBeforeHandler" />
+                  </node>
+                </node>
+              </node>
+            </node>
+            <node concept="3clFbJ" id="74LepNS08dX" role="3cqZAp">
+              <node concept="3clFbS" id="74LepNS08dY" role="3clFbx">
+                <node concept="3clFbF" id="74LepNS08dZ" role="3cqZAp">
+                  <node concept="2OqwBi" id="74LepNS08e0" role="3clFbG">
+                    <node concept="37vLTw" id="74LepNS08e1" role="2Oq$k0">
+                      <ref role="3cqZAo" node="RywcYwuy6H" resolve="element" />
+                    </node>
+                    <node concept="liA8E" id="74LepNS08e2" role="2OqNvi">
+                      <ref role="37wK5l" node="7C0FR5Beni9" resolve="setLeftRowCreateHandler" />
+                      <node concept="37vLTw" id="74LepNS08e3" role="37wK5m">
+                        <ref role="3cqZAo" node="74LepNS08dS" resolve="rowInsertBeforeHandler" />
+                      </node>
+                    </node>
+                  </node>
+                </node>
+              </node>
+              <node concept="3y3z36" id="74LepNS08e4" role="3clFbw">
+                <node concept="10Nm6u" id="74LepNS08e5" role="3uHU7w" />
+                <node concept="37vLTw" id="74LepNS08e6" role="3uHU7B">
+                  <ref role="3cqZAo" node="74LepNS08dS" resolve="rowInsertBeforeHandler" />
+                </node>
+              </node>
+            </node>
+            <node concept="3clFbH" id="74LepNS0k1P" role="3cqZAp" />
+            <node concept="3cpWs8" id="dzDMr0tEQC" role="3cqZAp">
+              <node concept="3cpWsn" id="dzDMr0tEQD" role="3cpWs9">
+                <property role="TrG5h" value="rowInsertHandler" />
+                <node concept="3uibUv" id="dzDMr0tDNO" role="1tU5fm">
+                  <ref role="3uigEE" node="7C0FR5AJOLF" resolve="IRowCreateHandler" />
+                </node>
+                <node concept="2OqwBi" id="dzDMr0tEQE" role="33vP2m">
+                  <node concept="37vLTw" id="dzDMr0tEQF" role="2Oq$k0">
+                    <ref role="3cqZAo" node="RywcYwuy6M" resolve="header" />
+                  </node>
+                  <node concept="liA8E" id="dzDMr0tEQG" role="2OqNvi">
+                    <ref role="37wK5l" node="dzDMr0twlY" resolve="getRowInsertHandler" />
+                  </node>
+                </node>
+              </node>
+            </node>
+            <node concept="3clFbJ" id="dzDMr0tJkJ" role="3cqZAp">
+              <node concept="3clFbS" id="dzDMr0tJkL" role="3clFbx">
+                <node concept="3clFbF" id="dzDMr0IoLN" role="3cqZAp">
+                  <node concept="2OqwBi" id="dzDMr0IoLO" role="3clFbG">
+                    <node concept="37vLTw" id="dzDMr0IoLP" role="2Oq$k0">
+                      <ref role="3cqZAo" node="RywcYwuy6H" resolve="element" />
+                    </node>
+                    <node concept="liA8E" id="dzDMr0IoLQ" role="2OqNvi">
+                      <ref role="37wK5l" node="7C0FR5Benin" resolve="setRightRowCreateHandler" />
+                      <node concept="37vLTw" id="dzDMr0IoLR" role="37wK5m">
+                        <ref role="3cqZAo" node="dzDMr0tEQD" resolve="rowInsertHandler" />
+                      </node>
+                    </node>
+                  </node>
+                </node>
+              </node>
+              <node concept="3y3z36" id="dzDMr0tPa0" role="3clFbw">
+                <node concept="10Nm6u" id="dzDMr0tPjv" role="3uHU7w" />
+                <node concept="37vLTw" id="dzDMr0tMVk" role="3uHU7B">
+                  <ref role="3cqZAo" node="dzDMr0tEQD" resolve="rowInsertHandler" />
+                </node>
+              </node>
+            </node>
+            <node concept="3clFbH" id="25cxNQTkG5O" role="3cqZAp" />
+            <node concept="3cpWs8" id="25cxNQTkI9X" role="3cqZAp">
+              <node concept="3cpWsn" id="25cxNQTkI9Y" role="3cpWs9">
+                <property role="TrG5h" value="rowDeleteHandler" />
+                <node concept="3uibUv" id="25cxNQTkI9Z" role="1tU5fm">
+                  <ref role="3uigEE" node="25cxNQTj_G3" resolve="IRowDeleteHandler" />
+                </node>
+                <node concept="2OqwBi" id="25cxNQTkIa0" role="33vP2m">
+                  <node concept="37vLTw" id="25cxNQTkIa1" role="2Oq$k0">
+                    <ref role="3cqZAo" node="RywcYwuy6M" resolve="header" />
+                  </node>
+                  <node concept="liA8E" id="25cxNQTkIa2" role="2OqNvi">
+                    <ref role="37wK5l" node="25cxNQTjAuX" resolve="getRowDeleteHandler" />
+                  </node>
+                </node>
+              </node>
+            </node>
+            <node concept="3clFbJ" id="25cxNQTkIa3" role="3cqZAp">
+              <node concept="3clFbS" id="25cxNQTkIa4" role="3clFbx">
+                <node concept="3clFbF" id="25cxNQTkIa5" role="3cqZAp">
+                  <node concept="2OqwBi" id="25cxNQTkIa6" role="3clFbG">
+                    <node concept="37vLTw" id="25cxNQTkIa7" role="2Oq$k0">
+                      <ref role="3cqZAo" node="RywcYwuy6H" resolve="element" />
+                    </node>
+                    <node concept="liA8E" id="25cxNQTkIa8" role="2OqNvi">
+                      <ref role="37wK5l" node="25cxNQTslAg" resolve="setLeftRowDeleteHandler" />
+                      <node concept="37vLTw" id="25cxNQTkIa9" role="37wK5m">
+                        <ref role="3cqZAo" node="25cxNQTkI9Y" resolve="rowDeleteHandler" />
+                      </node>
+                      <node concept="3cmrfG" id="25cxNQTkZs6" role="37wK5m">
+                        <property role="3cmrfH" value="0" />
+                      </node>
+                    </node>
+                  </node>
+                </node>
+                <node concept="3clFbF" id="25cxNQTomBU" role="3cqZAp">
+                  <node concept="2OqwBi" id="25cxNQTomBV" role="3clFbG">
+                    <node concept="37vLTw" id="25cxNQTomBW" role="2Oq$k0">
+                      <ref role="3cqZAo" node="RywcYwuy6H" resolve="element" />
+                    </node>
+                    <node concept="liA8E" id="25cxNQTomBX" role="2OqNvi">
+                      <ref role="37wK5l" node="25cxNQTslAG" resolve="setRightRowDeleteHandler" />
+                      <node concept="37vLTw" id="25cxNQTomBY" role="37wK5m">
+                        <ref role="3cqZAo" node="25cxNQTkI9Y" resolve="rowDeleteHandler" />
+                      </node>
+                      <node concept="3cmrfG" id="25cxNQTomBZ" role="37wK5m">
+                        <property role="3cmrfH" value="0" />
+                      </node>
+                    </node>
+                  </node>
+                </node>
+              </node>
+              <node concept="3y3z36" id="25cxNQTkIaa" role="3clFbw">
+                <node concept="10Nm6u" id="25cxNQTkIab" role="3uHU7w" />
+                <node concept="37vLTw" id="25cxNQTkIac" role="3uHU7B">
+                  <ref role="3cqZAo" node="25cxNQTkI9Y" resolve="rowDeleteHandler" />
+                </node>
+              </node>
+            </node>
+            <node concept="3clFbH" id="25cxNQTkG7t" role="3cqZAp" />
           </node>
           <node concept="3y3z36" id="RywcYwuy73" role="3clFbw">
             <node concept="10Nm6u" id="RywcYwuy74" role="3uHU7w" />
@@ -25819,48 +27769,59 @@
           <node concept="3clFbS" id="6OcqZnLOodK" role="3clFbx">
             <node concept="3clFbJ" id="m_yL2MFSQn" role="3cqZAp">
               <node concept="3clFbS" id="m_yL2MFSQp" role="3clFbx">
-                <node concept="3cpWs8" id="2c3czgqlyQR" role="3cqZAp">
-                  <node concept="3cpWsn" id="2c3czgqlyQS" role="3cpWs9">
-                    <property role="TrG5h" value="leftCorner" />
-                    <node concept="3uibUv" id="2c3czgqlyQT" role="1tU5fm">
-                      <ref role="3uigEE" node="5t6rCduo8mC" resolve="UnusedPosition" />
+                <node concept="1Dw8fO" id="74LepNRHPGn" role="3cqZAp">
+                  <node concept="3clFbS" id="74LepNRHPGp" role="2LFqv$">
+                    <node concept="3cpWs8" id="2c3czgqlyQR" role="3cqZAp">
+                      <node concept="3cpWsn" id="2c3czgqlyQS" role="3cpWs9">
+                        <property role="TrG5h" value="leftCorner" />
+                        <node concept="3uibUv" id="2c3czgqlyQT" role="1tU5fm">
+                          <ref role="3uigEE" node="5t6rCduo8mC" resolve="UnusedPosition" />
+                        </node>
+                        <node concept="2ShNRf" id="2c3czgqlzuG" role="33vP2m">
+                          <node concept="HV5vD" id="2c3czgqlzVH" role="2ShVmc">
+                            <ref role="HV5vE" node="5t6rCduo8mC" resolve="UnusedPosition" />
+                          </node>
+                        </node>
+                      </node>
                     </node>
-                    <node concept="2ShNRf" id="2c3czgqlzuG" role="33vP2m">
-                      <node concept="HV5vD" id="2c3czgqlzVH" role="2ShVmc">
-                        <ref role="HV5vE" node="5t6rCduo8mC" resolve="UnusedPosition" />
+                    <node concept="3clFbF" id="2c3czgqlDo0" role="3cqZAp">
+                      <node concept="2OqwBi" id="2c3czgqlE8c" role="3clFbG">
+                        <node concept="37vLTw" id="2c3czgqlDnZ" role="2Oq$k0">
+                          <ref role="3cqZAo" node="RywcYwuy3g" resolve="myGrid" />
+                        </node>
+                        <node concept="liA8E" id="2c3czgqlFhG" role="2OqNvi">
+                          <ref role="37wK5l" node="4UkcdCtPsZI" resolve="setElement" />
+                          <node concept="3cmrfG" id="2c3czgqlFnF" role="37wK5m">
+                            <property role="3cmrfH" value="0" />
+                          </node>
+                          <node concept="37vLTw" id="74LepNRIvBM" role="37wK5m">
+                            <ref role="3cqZAo" node="74LepNRHPGq" resolve="y" />
+                          </node>
+                          <node concept="37vLTw" id="2c3czgqlGoY" role="37wK5m">
+                            <ref role="3cqZAo" node="2c3czgqlyQS" resolve="leftCorner" />
+                          </node>
+                        </node>
                       </node>
                     </node>
                   </node>
-                </node>
-                <node concept="3clFbF" id="2c3czgql_K_" role="3cqZAp">
-                  <node concept="2OqwBi" id="2c3czgqlAlk" role="3clFbG">
-                    <node concept="37vLTw" id="2c3czgql_K$" role="2Oq$k0">
-                      <ref role="3cqZAo" node="2c3czgqlyQS" resolve="leftCorner" />
-                    </node>
-                    <node concept="liA8E" id="2c3czgqlB37" role="2OqNvi">
-                      <ref role="37wK5l" node="7C0FR5AKARf" resolve="setSpanY" />
-                      <node concept="37vLTw" id="2c3czgqlB4h" role="37wK5m">
-                        <ref role="3cqZAo" node="2c3czgpRTfA" resolve="columnHeadersSizeY" />
-                      </node>
+                  <node concept="3cpWsn" id="74LepNRHPGq" role="1Duv9x">
+                    <property role="TrG5h" value="y" />
+                    <node concept="10Oyi0" id="74LepNRHREu" role="1tU5fm" />
+                    <node concept="3cmrfG" id="74LepNRHV$l" role="33vP2m">
+                      <property role="3cmrfH" value="0" />
                     </node>
                   </node>
-                </node>
-                <node concept="3clFbF" id="2c3czgqlDo0" role="3cqZAp">
-                  <node concept="2OqwBi" id="2c3czgqlE8c" role="3clFbG">
-                    <node concept="37vLTw" id="2c3czgqlDnZ" role="2Oq$k0">
-                      <ref role="3cqZAo" node="RywcYwuy3g" resolve="myGrid" />
+                  <node concept="3eOVzh" id="74LepNRIebk" role="1Dwp0S">
+                    <node concept="37vLTw" id="74LepNRIg8t" role="3uHU7w">
+                      <ref role="3cqZAo" node="2c3czgpRTfA" resolve="columnHeadersSizeY" />
                     </node>
-                    <node concept="liA8E" id="2c3czgqlFhG" role="2OqNvi">
-                      <ref role="37wK5l" node="4UkcdCtPsZI" resolve="setElement" />
-                      <node concept="3cmrfG" id="2c3czgqlFnF" role="37wK5m">
-                        <property role="3cmrfH" value="0" />
-                      </node>
-                      <node concept="3cmrfG" id="2c3czgqlFQQ" role="37wK5m">
-                        <property role="3cmrfH" value="0" />
-                      </node>
-                      <node concept="37vLTw" id="2c3czgqlGoY" role="37wK5m">
-                        <ref role="3cqZAo" node="2c3czgqlyQS" resolve="leftCorner" />
-                      </node>
+                    <node concept="37vLTw" id="74LepNRIc3M" role="3uHU7B">
+                      <ref role="3cqZAo" node="74LepNRHPGq" resolve="y" />
+                    </node>
+                  </node>
+                  <node concept="3uNrnE" id="74LepNRInR3" role="1Dwrff">
+                    <node concept="37vLTw" id="74LepNRInR5" role="2$L3a6">
+                      <ref role="3cqZAo" node="74LepNRHPGq" resolve="y" />
                     </node>
                   </node>
                 </node>
@@ -25871,58 +27832,69 @@
             </node>
             <node concept="3clFbJ" id="m_yL2MFUfn" role="3cqZAp">
               <node concept="3clFbS" id="m_yL2MFUfp" role="3clFbx">
-                <node concept="3cpWs8" id="2c3czgqlzWw" role="3cqZAp">
-                  <node concept="3cpWsn" id="2c3czgqlzWx" role="3cpWs9">
-                    <property role="TrG5h" value="rightCorner" />
-                    <node concept="3uibUv" id="2c3czgqlzWy" role="1tU5fm">
-                      <ref role="3uigEE" node="5t6rCduo8mC" resolve="UnusedPosition" />
-                    </node>
-                    <node concept="2ShNRf" id="2c3czgqlzWz" role="33vP2m">
-                      <node concept="HV5vD" id="2c3czgqlzW$" role="2ShVmc">
-                        <ref role="HV5vE" node="5t6rCduo8mC" resolve="UnusedPosition" />
-                      </node>
-                    </node>
-                  </node>
-                </node>
-                <node concept="3clFbF" id="2c3czgqlB5Y" role="3cqZAp">
-                  <node concept="2OqwBi" id="2c3czgqlBFW" role="3clFbG">
-                    <node concept="37vLTw" id="2c3czgqlB5X" role="2Oq$k0">
-                      <ref role="3cqZAo" node="2c3czgqlzWx" resolve="rightCorner" />
-                    </node>
-                    <node concept="liA8E" id="2c3czgqlCqH" role="2OqNvi">
-                      <ref role="37wK5l" node="7C0FR5AKARf" resolve="setSpanY" />
-                      <node concept="37vLTw" id="2c3czgqlCrR" role="37wK5m">
-                        <ref role="3cqZAo" node="2c3czgpRTfA" resolve="columnHeadersSizeY" />
+                <node concept="1Dw8fO" id="74LepNRIAvv" role="3cqZAp">
+                  <node concept="3clFbS" id="74LepNRIAvx" role="2LFqv$">
+                    <node concept="3cpWs8" id="2c3czgqlzWw" role="3cqZAp">
+                      <node concept="3cpWsn" id="2c3czgqlzWx" role="3cpWs9">
+                        <property role="TrG5h" value="rightCorner" />
+                        <node concept="3uibUv" id="2c3czgqlzWy" role="1tU5fm">
+                          <ref role="3uigEE" node="5t6rCduo8mC" resolve="UnusedPosition" />
+                        </node>
+                        <node concept="2ShNRf" id="2c3czgqlzWz" role="33vP2m">
+                          <node concept="HV5vD" id="2c3czgqlzW$" role="2ShVmc">
+                            <ref role="HV5vE" node="5t6rCduo8mC" resolve="UnusedPosition" />
+                          </node>
+                        </node>
                       </node>
                     </node>
-                  </node>
-                </node>
-                <node concept="3clFbF" id="2c3czgqlGwD" role="3cqZAp">
-                  <node concept="2OqwBi" id="2c3czgqlHgX" role="3clFbG">
-                    <node concept="37vLTw" id="2c3czgqlGwC" role="2Oq$k0">
-                      <ref role="3cqZAo" node="RywcYwuy3g" resolve="myGrid" />
-                    </node>
-                    <node concept="liA8E" id="2c3czgqlIqf" role="2OqNvi">
-                      <ref role="37wK5l" node="4UkcdCtPsZI" resolve="setElement" />
-                      <node concept="3cpWsd" id="2c3czgqlKmH" role="37wK5m">
-                        <node concept="3cmrfG" id="2c3czgqlKmR" role="3uHU7w">
-                          <property role="3cmrfH" value="1" />
+                    <node concept="3clFbF" id="2c3czgqlGwD" role="3cqZAp">
+                      <node concept="2OqwBi" id="2c3czgqlHgX" role="3clFbG">
+                        <node concept="37vLTw" id="2c3czgqlGwC" role="2Oq$k0">
+                          <ref role="3cqZAo" node="RywcYwuy3g" resolve="myGrid" />
                         </node>
-                        <node concept="2OqwBi" id="2c3czgqlIMI" role="3uHU7B">
-                          <node concept="37vLTw" id="2c3czgqlIzp" role="2Oq$k0">
-                            <ref role="3cqZAo" node="RywcYwuy3g" resolve="myGrid" />
+                        <node concept="liA8E" id="2c3czgqlIqf" role="2OqNvi">
+                          <ref role="37wK5l" node="4UkcdCtPsZI" resolve="setElement" />
+                          <node concept="3cpWsd" id="2c3czgqlKmH" role="37wK5m">
+                            <node concept="3cmrfG" id="2c3czgqlKmR" role="3uHU7w">
+                              <property role="3cmrfH" value="1" />
+                            </node>
+                            <node concept="2OqwBi" id="2c3czgqlIMI" role="3uHU7B">
+                              <node concept="37vLTw" id="2c3czgqlIzp" role="2Oq$k0">
+                                <ref role="3cqZAo" node="RywcYwuy3g" resolve="myGrid" />
+                              </node>
+                              <node concept="liA8E" id="2c3czgqlJYO" role="2OqNvi">
+                                <ref role="37wK5l" node="6tOcB$JGRTs" resolve="getSizeX" />
+                              </node>
+                            </node>
                           </node>
-                          <node concept="liA8E" id="2c3czgqlJYO" role="2OqNvi">
-                            <ref role="37wK5l" node="6tOcB$JGRTs" resolve="getSizeX" />
+                          <node concept="37vLTw" id="74LepNRJ1Dz" role="37wK5m">
+                            <ref role="3cqZAo" node="74LepNRIAvy" resolve="y" />
+                          </node>
+                          <node concept="37vLTw" id="2c3czgqlKZY" role="37wK5m">
+                            <ref role="3cqZAo" node="2c3czgqlzWx" resolve="rightCorner" />
                           </node>
                         </node>
                       </node>
-                      <node concept="3cmrfG" id="2c3czgqlKO6" role="37wK5m">
-                        <property role="3cmrfH" value="0" />
-                      </node>
-                      <node concept="37vLTw" id="2c3czgqlKZY" role="37wK5m">
-                        <ref role="3cqZAo" node="2c3czgqlzWx" resolve="rightCorner" />
-                      </node>
+                    </node>
+                  </node>
+                  <node concept="3cpWsn" id="74LepNRIAvy" role="1Duv9x">
+                    <property role="TrG5h" value="y" />
+                    <node concept="10Oyi0" id="74LepNRICt7" role="1tU5fm" />
+                    <node concept="3cmrfG" id="74LepNRIGmq" role="33vP2m">
+                      <property role="3cmrfH" value="0" />
+                    </node>
+                  </node>
+                  <node concept="3eOVzh" id="74LepNRILeZ" role="1Dwp0S">
+                    <node concept="37vLTw" id="74LepNRINbQ" role="3uHU7w">
+                      <ref role="3cqZAo" node="2c3czgpRTfA" resolve="columnHeadersSizeY" />
+                    </node>
+                    <node concept="37vLTw" id="74LepNRIIj8" role="3uHU7B">
+                      <ref role="3cqZAo" node="74LepNRIAvy" resolve="y" />
+                    </node>
+                  </node>
+                  <node concept="3uNrnE" id="74LepNRIQWF" role="1Dwrff">
+                    <node concept="37vLTw" id="74LepNRIQWH" role="2$L3a6">
+                      <ref role="3cqZAo" node="74LepNRIAvy" resolve="y" />
                     </node>
                   </node>
                 </node>
@@ -25985,6 +27957,82 @@
                     </node>
                   </node>
                 </node>
+                <node concept="3clFbH" id="25cxNQTnqvc" role="3cqZAp" />
+                <node concept="3cpWs8" id="25cxNQTnuGf" role="3cqZAp">
+                  <node concept="3cpWsn" id="25cxNQTnuGg" role="3cpWs9">
+                    <property role="TrG5h" value="leftDeleteHandler" />
+                    <property role="3TUv4t" value="true" />
+                    <node concept="3uibUv" id="25cxNQTnuGh" role="1tU5fm">
+                      <ref role="3uigEE" node="25cxNQTj_G3" resolve="IRowDeleteHandler" />
+                    </node>
+                    <node concept="2OqwBi" id="25cxNQTnuGi" role="33vP2m">
+                      <node concept="37vLTw" id="25cxNQTnuGj" role="2Oq$k0">
+                        <ref role="3cqZAo" node="RywcYwuy3g" resolve="myGrid" />
+                      </node>
+                      <node concept="liA8E" id="25cxNQTnuGk" role="2OqNvi">
+                        <ref role="37wK5l" node="25cxNQTm4se" resolve="getLeftRowDeleteHandler" />
+                        <node concept="37vLTw" id="25cxNQTnuGl" role="37wK5m">
+                          <ref role="3cqZAo" node="2c3czgqoThh" resolve="y" />
+                        </node>
+                      </node>
+                    </node>
+                  </node>
+                </node>
+                <node concept="3clFbJ" id="25cxNQTnuGm" role="3cqZAp">
+                  <node concept="3clFbS" id="25cxNQTnuGn" role="3clFbx">
+                    <node concept="3clFbF" id="25cxNQTnuGo" role="3cqZAp">
+                      <node concept="2OqwBi" id="25cxNQTnuGp" role="3clFbG">
+                        <node concept="37vLTw" id="25cxNQTnuGq" role="2Oq$k0">
+                          <ref role="3cqZAo" node="2c3czgqoYHR" resolve="left" />
+                        </node>
+                        <node concept="liA8E" id="25cxNQTnuGr" role="2OqNvi">
+                          <ref role="37wK5l" to="g51k:~EditorCell_Basic.setAction(jetbrains.mps.openapi.editor.cells.CellActionType,jetbrains.mps.openapi.editor.cells.CellAction)" resolve="setAction" />
+                          <node concept="Rm8GO" id="25cxNQTo4QP" role="37wK5m">
+                            <ref role="Rm8GQ" to="f4zo:~CellActionType.BACKSPACE" resolve="BACKSPACE" />
+                            <ref role="1Px2BO" to="f4zo:~CellActionType" resolve="CellActionType" />
+                          </node>
+                          <node concept="2ShNRf" id="25cxNQTnuGt" role="37wK5m">
+                            <node concept="1pGfFk" id="25cxNQTnuGu" role="2ShVmc">
+                              <ref role="37wK5l" node="25cxNQTnLqR" resolve="RowDeleteHandlerAdapter" />
+                              <node concept="37vLTw" id="25cxNQTnuGv" role="37wK5m">
+                                <ref role="3cqZAo" node="25cxNQTnuGg" resolve="leftDeleteHandler" />
+                              </node>
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                    </node>
+                    <node concept="3clFbF" id="25cxNQTMPBh" role="3cqZAp">
+                      <node concept="2OqwBi" id="25cxNQTMPBi" role="3clFbG">
+                        <node concept="37vLTw" id="25cxNQTMPBj" role="2Oq$k0">
+                          <ref role="3cqZAo" node="2c3czgqoYHR" resolve="left" />
+                        </node>
+                        <node concept="liA8E" id="25cxNQTMPBk" role="2OqNvi">
+                          <ref role="37wK5l" to="g51k:~EditorCell_Basic.setAction(jetbrains.mps.openapi.editor.cells.CellActionType,jetbrains.mps.openapi.editor.cells.CellAction)" resolve="setAction" />
+                          <node concept="Rm8GO" id="25cxNQTMRKn" role="37wK5m">
+                            <ref role="Rm8GQ" to="f4zo:~CellActionType.DELETE" resolve="DELETE" />
+                            <ref role="1Px2BO" to="f4zo:~CellActionType" resolve="CellActionType" />
+                          </node>
+                          <node concept="2ShNRf" id="25cxNQTMPBm" role="37wK5m">
+                            <node concept="1pGfFk" id="25cxNQTMPBn" role="2ShVmc">
+                              <ref role="37wK5l" node="25cxNQTnLqR" resolve="RowDeleteHandlerAdapter" />
+                              <node concept="37vLTw" id="25cxNQTMPBo" role="37wK5m">
+                                <ref role="3cqZAo" node="25cxNQTnuGg" resolve="leftDeleteHandler" />
+                              </node>
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                    </node>
+                  </node>
+                  <node concept="3y3z36" id="25cxNQTnuGw" role="3clFbw">
+                    <node concept="10Nm6u" id="25cxNQTnuGx" role="3uHU7w" />
+                    <node concept="37vLTw" id="25cxNQTnuGy" role="3uHU7B">
+                      <ref role="3cqZAo" node="25cxNQTnuGg" resolve="leftDeleteHandler" />
+                    </node>
+                  </node>
+                </node>
+                <node concept="3clFbH" id="25cxNQTns$K" role="3cqZAp" />
                 <node concept="3cpWs8" id="2c3czgqpspd" role="3cqZAp">
                   <node concept="3cpWsn" id="2c3czgqpspe" role="3cpWs9">
                     <property role="TrG5h" value="leftCreateHandler" />
@@ -26029,26 +28077,52 @@
                         </node>
                       </node>
                     </node>
-                    <node concept="3clFbF" id="2c3czgqpIyX" role="3cqZAp">
-                      <node concept="2OqwBi" id="2c3czgqpIN2" role="3clFbG">
-                        <node concept="37vLTw" id="2c3czgqpIyW" role="2Oq$k0">
+                  </node>
+                  <node concept="3y3z36" id="3GoYdkxce1G" role="3clFbw">
+                    <node concept="10Nm6u" id="3GoYdkxce2b" role="3uHU7w" />
+                    <node concept="37vLTw" id="3GoYdkxcdcP" role="3uHU7B">
+                      <ref role="3cqZAo" node="2c3czgqpspe" resolve="leftCreateHandler" />
+                    </node>
+                  </node>
+                </node>
+                <node concept="3cpWs8" id="74LepNS4PaH" role="3cqZAp">
+                  <node concept="3cpWsn" id="74LepNS4PaI" role="3cpWs9">
+                    <property role="TrG5h" value="rightCreateHandler" />
+                    <property role="3TUv4t" value="true" />
+                    <node concept="3uibUv" id="74LepNS4PaJ" role="1tU5fm">
+                      <ref role="3uigEE" node="7C0FR5AJOLF" resolve="IRowCreateHandler" />
+                    </node>
+                    <node concept="2OqwBi" id="74LepNS4PaK" role="33vP2m">
+                      <node concept="37vLTw" id="74LepNS4PaL" role="2Oq$k0">
+                        <ref role="3cqZAo" node="RywcYwuy3g" resolve="myGrid" />
+                      </node>
+                      <node concept="liA8E" id="74LepNS4PaM" role="2OqNvi">
+                        <ref role="37wK5l" node="7C0FR5BbGAX" resolve="getRightRowCreateHandler" />
+                        <node concept="37vLTw" id="74LepNS4PaN" role="37wK5m">
+                          <ref role="3cqZAo" node="2c3czgqoThh" resolve="y" />
+                        </node>
+                      </node>
+                    </node>
+                  </node>
+                </node>
+                <node concept="3clFbJ" id="74LepNS4V8z" role="3cqZAp">
+                  <node concept="3clFbS" id="74LepNS4V8_" role="3clFbx">
+                    <node concept="3clFbF" id="74LepNS57Ju" role="3cqZAp">
+                      <node concept="2OqwBi" id="74LepNS57Jv" role="3clFbG">
+                        <node concept="37vLTw" id="74LepNS57Jw" role="2Oq$k0">
                           <ref role="3cqZAo" node="2c3czgqoYHR" resolve="left" />
                         </node>
-                        <node concept="liA8E" id="2c3czgqpJQP" role="2OqNvi">
+                        <node concept="liA8E" id="74LepNS57Jx" role="2OqNvi">
                           <ref role="37wK5l" to="g51k:~EditorCell_Basic.setAction(jetbrains.mps.openapi.editor.cells.CellActionType,jetbrains.mps.openapi.editor.cells.CellAction)" resolve="setAction" />
-                          <node concept="Rm8GO" id="2c3czgqpJW1" role="37wK5m">
+                          <node concept="Rm8GO" id="74LepNS5v95" role="37wK5m">
                             <ref role="Rm8GQ" to="f4zo:~CellActionType.INSERT_BEFORE" resolve="INSERT_BEFORE" />
                             <ref role="1Px2BO" to="f4zo:~CellActionType" resolve="CellActionType" />
                           </node>
-                          <node concept="2OqwBi" id="2c3czgqpKjg" role="37wK5m">
-                            <node concept="37vLTw" id="2c3czgqpK8S" role="2Oq$k0">
-                              <ref role="3cqZAo" node="2c3czgqoYHR" resolve="left" />
-                            </node>
-                            <node concept="liA8E" id="2c3czgqpKON" role="2OqNvi">
-                              <ref role="37wK5l" to="g51k:~EditorCell_Basic.getAction(jetbrains.mps.openapi.editor.cells.CellActionType)" resolve="getAction" />
-                              <node concept="Rm8GO" id="2c3czgqpLbb" role="37wK5m">
-                                <ref role="Rm8GQ" to="f4zo:~CellActionType.INSERT" resolve="INSERT" />
-                                <ref role="1Px2BO" to="f4zo:~CellActionType" resolve="CellActionType" />
+                          <node concept="2ShNRf" id="74LepNS57Jz" role="37wK5m">
+                            <node concept="1pGfFk" id="74LepNS57J$" role="2ShVmc">
+                              <ref role="37wK5l" node="2c3czgqpwdy" resolve="RowCreateHandlerAdapter" />
+                              <node concept="37vLTw" id="74LepNS57J_" role="37wK5m">
+                                <ref role="3cqZAo" node="74LepNS4PaI" resolve="rightCreateHandler" />
                               </node>
                             </node>
                           </node>
@@ -26056,10 +28130,40 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="3y3z36" id="3GoYdkxce1G" role="3clFbw">
-                    <node concept="10Nm6u" id="3GoYdkxce2b" role="3uHU7w" />
-                    <node concept="37vLTw" id="3GoYdkxcdcP" role="3uHU7B">
-                      <ref role="3cqZAo" node="2c3czgqpspe" resolve="leftCreateHandler" />
+                  <node concept="3y3z36" id="74LepNS53Aq" role="3clFbw">
+                    <node concept="10Nm6u" id="74LepNS55NZ" role="3uHU7w" />
+                    <node concept="37vLTw" id="74LepNS50zD" role="3uHU7B">
+                      <ref role="3cqZAo" node="74LepNS4PaI" resolve="rightCreateHandler" />
+                    </node>
+                  </node>
+                  <node concept="9aQIb" id="74LepNS4X5Z" role="9aQIa">
+                    <node concept="3clFbS" id="74LepNS4X60" role="9aQI4">
+                      <node concept="3clFbF" id="2c3czgqpIyX" role="3cqZAp">
+                        <node concept="2OqwBi" id="2c3czgqpIN2" role="3clFbG">
+                          <node concept="37vLTw" id="2c3czgqpIyW" role="2Oq$k0">
+                            <ref role="3cqZAo" node="2c3czgqoYHR" resolve="left" />
+                          </node>
+                          <node concept="liA8E" id="2c3czgqpJQP" role="2OqNvi">
+                            <ref role="37wK5l" to="g51k:~EditorCell_Basic.setAction(jetbrains.mps.openapi.editor.cells.CellActionType,jetbrains.mps.openapi.editor.cells.CellAction)" resolve="setAction" />
+                            <node concept="Rm8GO" id="2c3czgqpJW1" role="37wK5m">
+                              <ref role="Rm8GQ" to="f4zo:~CellActionType.INSERT_BEFORE" resolve="INSERT_BEFORE" />
+                              <ref role="1Px2BO" to="f4zo:~CellActionType" resolve="CellActionType" />
+                            </node>
+                            <node concept="2OqwBi" id="2c3czgqpKjg" role="37wK5m">
+                              <node concept="37vLTw" id="2c3czgqpK8S" role="2Oq$k0">
+                                <ref role="3cqZAo" node="2c3czgqoYHR" resolve="left" />
+                              </node>
+                              <node concept="liA8E" id="2c3czgqpKON" role="2OqNvi">
+                                <ref role="37wK5l" to="g51k:~EditorCell_Basic.getAction(jetbrains.mps.openapi.editor.cells.CellActionType)" resolve="getAction" />
+                                <node concept="Rm8GO" id="2c3czgqpLbb" role="37wK5m">
+                                  <ref role="Rm8GQ" to="f4zo:~CellActionType.INSERT" resolve="INSERT" />
+                                  <ref role="1Px2BO" to="f4zo:~CellActionType" resolve="CellActionType" />
+                                </node>
+                              </node>
+                            </node>
+                          </node>
+                        </node>
+                      </node>
                     </node>
                   </node>
                 </node>
@@ -26119,6 +28223,82 @@
                     </node>
                   </node>
                 </node>
+                <node concept="3clFbH" id="25cxNQTOw6F" role="3cqZAp" />
+                <node concept="3cpWs8" id="25cxNQTOC5F" role="3cqZAp">
+                  <node concept="3cpWsn" id="25cxNQTOC5G" role="3cpWs9">
+                    <property role="TrG5h" value="rightDeleteHandler" />
+                    <property role="3TUv4t" value="true" />
+                    <node concept="3uibUv" id="25cxNQTOC5H" role="1tU5fm">
+                      <ref role="3uigEE" node="25cxNQTj_G3" resolve="IRowDeleteHandler" />
+                    </node>
+                    <node concept="2OqwBi" id="25cxNQTOC5I" role="33vP2m">
+                      <node concept="37vLTw" id="25cxNQTOC5J" role="2Oq$k0">
+                        <ref role="3cqZAo" node="RywcYwuy3g" resolve="myGrid" />
+                      </node>
+                      <node concept="liA8E" id="25cxNQTOC5K" role="2OqNvi">
+                        <ref role="37wK5l" node="25cxNQTm4s2" resolve="getRightRowDeleteHandler" />
+                        <node concept="37vLTw" id="25cxNQTOC5L" role="37wK5m">
+                          <ref role="3cqZAo" node="2c3czgqoThh" resolve="y" />
+                        </node>
+                      </node>
+                    </node>
+                  </node>
+                </node>
+                <node concept="3clFbJ" id="25cxNQTOC5M" role="3cqZAp">
+                  <node concept="3clFbS" id="25cxNQTOC5N" role="3clFbx">
+                    <node concept="3clFbF" id="25cxNQTOC5O" role="3cqZAp">
+                      <node concept="2OqwBi" id="25cxNQTOC5P" role="3clFbG">
+                        <node concept="37vLTw" id="25cxNQTOC5Q" role="2Oq$k0">
+                          <ref role="3cqZAo" node="2c3czgqp3ci" resolve="right" />
+                        </node>
+                        <node concept="liA8E" id="25cxNQTOC5R" role="2OqNvi">
+                          <ref role="37wK5l" to="g51k:~EditorCell_Basic.setAction(jetbrains.mps.openapi.editor.cells.CellActionType,jetbrains.mps.openapi.editor.cells.CellAction)" resolve="setAction" />
+                          <node concept="Rm8GO" id="25cxNQTOC5S" role="37wK5m">
+                            <ref role="Rm8GQ" to="f4zo:~CellActionType.BACKSPACE" resolve="BACKSPACE" />
+                            <ref role="1Px2BO" to="f4zo:~CellActionType" resolve="CellActionType" />
+                          </node>
+                          <node concept="2ShNRf" id="25cxNQTOC5T" role="37wK5m">
+                            <node concept="1pGfFk" id="25cxNQTOC5U" role="2ShVmc">
+                              <ref role="37wK5l" node="25cxNQTnLqR" resolve="RowDeleteHandlerAdapter" />
+                              <node concept="37vLTw" id="25cxNQTOC5V" role="37wK5m">
+                                <ref role="3cqZAo" node="25cxNQTOC5G" resolve="rightDeleteHandler" />
+                              </node>
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                    </node>
+                    <node concept="3clFbF" id="25cxNQTOC5W" role="3cqZAp">
+                      <node concept="2OqwBi" id="25cxNQTOC5X" role="3clFbG">
+                        <node concept="37vLTw" id="25cxNQTOC5Y" role="2Oq$k0">
+                          <ref role="3cqZAo" node="2c3czgqp3ci" resolve="right" />
+                        </node>
+                        <node concept="liA8E" id="25cxNQTOC5Z" role="2OqNvi">
+                          <ref role="37wK5l" to="g51k:~EditorCell_Basic.setAction(jetbrains.mps.openapi.editor.cells.CellActionType,jetbrains.mps.openapi.editor.cells.CellAction)" resolve="setAction" />
+                          <node concept="Rm8GO" id="25cxNQTOC60" role="37wK5m">
+                            <ref role="Rm8GQ" to="f4zo:~CellActionType.DELETE" resolve="DELETE" />
+                            <ref role="1Px2BO" to="f4zo:~CellActionType" resolve="CellActionType" />
+                          </node>
+                          <node concept="2ShNRf" id="25cxNQTOC61" role="37wK5m">
+                            <node concept="1pGfFk" id="25cxNQTOC62" role="2ShVmc">
+                              <ref role="37wK5l" node="25cxNQTnLqR" resolve="RowDeleteHandlerAdapter" />
+                              <node concept="37vLTw" id="25cxNQTOC63" role="37wK5m">
+                                <ref role="3cqZAo" node="25cxNQTOC5G" resolve="rightDeleteHandler" />
+                              </node>
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                    </node>
+                  </node>
+                  <node concept="3y3z36" id="25cxNQTOC64" role="3clFbw">
+                    <node concept="10Nm6u" id="25cxNQTOC65" role="3uHU7w" />
+                    <node concept="37vLTw" id="25cxNQTOC66" role="3uHU7B">
+                      <ref role="3cqZAo" node="25cxNQTOC5G" resolve="rightDeleteHandler" />
+                    </node>
+                  </node>
+                </node>
+                <node concept="3clFbH" id="25cxNQTOwbj" role="3cqZAp" />
                 <node concept="3cpWs8" id="2c3czgqpuOh" role="3cqZAp">
                   <node concept="3cpWsn" id="2c3czgqpuOi" role="3cpWs9">
                     <property role="TrG5h" value="rightCreateHandler" />
@@ -26163,6 +28343,37 @@
                         </node>
                       </node>
                     </node>
+                  </node>
+                  <node concept="3y3z36" id="3GoYdkxcsEw" role="3clFbw">
+                    <node concept="10Nm6u" id="3GoYdkxcsEZ" role="3uHU7w" />
+                    <node concept="37vLTw" id="3GoYdkxcsDf" role="3uHU7B">
+                      <ref role="3cqZAo" node="2c3czgqpuOi" resolve="rightCreateHandler" />
+                    </node>
+                  </node>
+                </node>
+                <node concept="3clFbH" id="2c3czgqpLmw" role="3cqZAp" />
+                <node concept="3cpWs8" id="74LepNS5k4P" role="3cqZAp">
+                  <node concept="3cpWsn" id="74LepNS5k4Q" role="3cpWs9">
+                    <property role="TrG5h" value="leftCreateHandler" />
+                    <property role="3TUv4t" value="true" />
+                    <node concept="3uibUv" id="74LepNS5k4R" role="1tU5fm">
+                      <ref role="3uigEE" node="7C0FR5AJOLF" resolve="IRowCreateHandler" />
+                    </node>
+                    <node concept="2OqwBi" id="74LepNS5k4S" role="33vP2m">
+                      <node concept="37vLTw" id="74LepNS5k4T" role="2Oq$k0">
+                        <ref role="3cqZAo" node="RywcYwuy3g" resolve="myGrid" />
+                      </node>
+                      <node concept="liA8E" id="74LepNS5k4U" role="2OqNvi">
+                        <ref role="37wK5l" node="7C0FR5BdJ_q" resolve="getLeftRowCreateHandler" />
+                        <node concept="37vLTw" id="74LepNS5k4V" role="37wK5m">
+                          <ref role="3cqZAo" node="2c3czgqoThh" resolve="y" />
+                        </node>
+                      </node>
+                    </node>
+                  </node>
+                </node>
+                <node concept="3clFbJ" id="74LepNS5k4W" role="3cqZAp">
+                  <node concept="3clFbS" id="74LepNS5k4X" role="3clFbx">
                     <node concept="3clFbF" id="2c3czgqpLWX" role="3cqZAp">
                       <node concept="2OqwBi" id="2c3czgqpLWY" role="3clFbG">
                         <node concept="37vLTw" id="2c3czgqpMWa" role="2Oq$k0">
@@ -26174,15 +28385,11 @@
                             <ref role="1Px2BO" to="f4zo:~CellActionType" resolve="CellActionType" />
                             <ref role="Rm8GQ" to="f4zo:~CellActionType.INSERT_BEFORE" resolve="INSERT_BEFORE" />
                           </node>
-                          <node concept="2OqwBi" id="2c3czgqpLX2" role="37wK5m">
-                            <node concept="37vLTw" id="m_yL2MFRrI" role="2Oq$k0">
-                              <ref role="3cqZAo" node="2c3czgqp3ci" resolve="right" />
-                            </node>
-                            <node concept="liA8E" id="2c3czgqpLX4" role="2OqNvi">
-                              <ref role="37wK5l" to="g51k:~EditorCell_Basic.getAction(jetbrains.mps.openapi.editor.cells.CellActionType)" resolve="getAction" />
-                              <node concept="Rm8GO" id="2c3czgqpLX5" role="37wK5m">
-                                <ref role="1Px2BO" to="f4zo:~CellActionType" resolve="CellActionType" />
-                                <ref role="Rm8GQ" to="f4zo:~CellActionType.INSERT" resolve="INSERT" />
+                          <node concept="2ShNRf" id="74LepNS7lbx" role="37wK5m">
+                            <node concept="1pGfFk" id="74LepNS7lby" role="2ShVmc">
+                              <ref role="37wK5l" node="2c3czgqpwdy" resolve="RowCreateHandlerAdapter" />
+                              <node concept="37vLTw" id="74LepNS7lbz" role="37wK5m">
+                                <ref role="3cqZAo" node="74LepNS5k4Q" resolve="leftCreateHandler" />
                               </node>
                             </node>
                           </node>
@@ -26190,14 +28397,44 @@
                       </node>
                     </node>
                   </node>
-                  <node concept="3y3z36" id="3GoYdkxcsEw" role="3clFbw">
-                    <node concept="10Nm6u" id="3GoYdkxcsEZ" role="3uHU7w" />
-                    <node concept="37vLTw" id="3GoYdkxcsDf" role="3uHU7B">
-                      <ref role="3cqZAo" node="2c3czgqpuOi" resolve="rightCreateHandler" />
+                  <node concept="3y3z36" id="74LepNS5k56" role="3clFbw">
+                    <node concept="10Nm6u" id="74LepNS5k57" role="3uHU7w" />
+                    <node concept="37vLTw" id="74LepNS5k58" role="3uHU7B">
+                      <ref role="3cqZAo" node="74LepNS5k4Q" resolve="leftCreateHandler" />
+                    </node>
+                  </node>
+                  <node concept="9aQIb" id="74LepNS5_S2" role="9aQIa">
+                    <node concept="3clFbS" id="74LepNS5_S3" role="9aQI4">
+                      <node concept="3clFbF" id="74LepNS5DUY" role="3cqZAp">
+                        <node concept="2OqwBi" id="74LepNS5DUZ" role="3clFbG">
+                          <node concept="37vLTw" id="74LepNS5DV0" role="2Oq$k0">
+                            <ref role="3cqZAo" node="2c3czgqp3ci" resolve="right" />
+                          </node>
+                          <node concept="liA8E" id="74LepNS5DV1" role="2OqNvi">
+                            <ref role="37wK5l" to="g51k:~EditorCell_Basic.setAction(jetbrains.mps.openapi.editor.cells.CellActionType,jetbrains.mps.openapi.editor.cells.CellAction)" resolve="setAction" />
+                            <node concept="Rm8GO" id="74LepNS5DV2" role="37wK5m">
+                              <ref role="Rm8GQ" to="f4zo:~CellActionType.INSERT_BEFORE" resolve="INSERT_BEFORE" />
+                              <ref role="1Px2BO" to="f4zo:~CellActionType" resolve="CellActionType" />
+                            </node>
+                            <node concept="2OqwBi" id="74LepNS5DV3" role="37wK5m">
+                              <node concept="37vLTw" id="74LepNS5DV4" role="2Oq$k0">
+                                <ref role="3cqZAo" node="2c3czgqp3ci" resolve="right" />
+                              </node>
+                              <node concept="liA8E" id="74LepNS5DV5" role="2OqNvi">
+                                <ref role="37wK5l" to="g51k:~EditorCell_Basic.getAction(jetbrains.mps.openapi.editor.cells.CellActionType)" resolve="getAction" />
+                                <node concept="Rm8GO" id="74LepNS5DV6" role="37wK5m">
+                                  <ref role="Rm8GQ" to="f4zo:~CellActionType.INSERT" resolve="INSERT" />
+                                  <ref role="1Px2BO" to="f4zo:~CellActionType" resolve="CellActionType" />
+                                </node>
+                              </node>
+                            </node>
+                          </node>
+                        </node>
+                      </node>
                     </node>
                   </node>
                 </node>
-                <node concept="3clFbH" id="2c3czgqpLmw" role="3cqZAp" />
+                <node concept="3clFbH" id="74LepNS5fCc" role="3cqZAp" />
               </node>
               <node concept="37vLTw" id="m_yL2MFPXM" role="3clFbw">
                 <ref role="3cqZAo" node="m_yL2MF_eO" resolve="rightEnabled" />
@@ -26406,6 +28643,26 @@
       <node concept="3Tm1VV" id="DXnsYPPSei" role="1B3o_S" />
       <node concept="3clFbS" id="DXnsYPPSej" role="3clF47" />
     </node>
+    <node concept="3clFb_" id="74LepNRpJTN" role="jymVt">
+      <property role="TrG5h" value="setCell" />
+      <node concept="37vLTG" id="74LepNRpJTO" role="3clF46">
+        <property role="TrG5h" value="x" />
+        <node concept="10Oyi0" id="74LepNRpJTP" role="1tU5fm" />
+      </node>
+      <node concept="37vLTG" id="74LepNRpJTQ" role="3clF46">
+        <property role="TrG5h" value="y" />
+        <node concept="10Oyi0" id="74LepNRpJTR" role="1tU5fm" />
+      </node>
+      <node concept="37vLTG" id="74LepNRpM3n" role="3clF46">
+        <property role="TrG5h" value="element" />
+        <node concept="3uibUv" id="74LepNRpN2s" role="1tU5fm">
+          <ref role="3uigEE" node="7C0FR5Aonyd" resolve="IGridElement" />
+        </node>
+      </node>
+      <node concept="3cqZAl" id="74LepNRpJTU" role="3clF45" />
+      <node concept="3Tm1VV" id="74LepNRpJTV" role="1B3o_S" />
+      <node concept="3clFbS" id="74LepNRpJTW" role="3clF47" />
+    </node>
     <node concept="3clFb_" id="291OoVEMCiU" role="jymVt">
       <property role="TrG5h" value="getCell" />
       <node concept="3uibUv" id="291OoVEMGgJ" role="3clF45">
@@ -27013,6 +29270,50 @@
       <node concept="3Tm1VV" id="28GSY8anZBj" role="1B3o_S" />
       <node concept="3clFbS" id="28GSY8anZBk" role="3clF47" />
     </node>
+    <node concept="3clFb_" id="74LepNSyoQX" role="jymVt">
+      <property role="TrG5h" value="setEndCellAction" />
+      <node concept="3clFbS" id="74LepNSyoR0" role="3clF47" />
+      <node concept="3Tm1VV" id="74LepNSyoR1" role="1B3o_S" />
+      <node concept="3cqZAl" id="74LepNSy5dN" role="3clF45" />
+      <node concept="37vLTG" id="74LepNSAbpR" role="3clF46">
+        <property role="TrG5h" value="type" />
+        <node concept="3uibUv" id="74LepNSAbpQ" role="1tU5fm">
+          <ref role="3uigEE" to="f4zo:~CellActionType" resolve="CellActionType" />
+        </node>
+      </node>
+      <node concept="37vLTG" id="74LepNSXBUF" role="3clF46">
+        <property role="TrG5h" value="creator" />
+        <node concept="1ajhzC" id="74LepNSXC_s" role="1tU5fm">
+          <node concept="3uibUv" id="74LepNSXEDM" role="1ajl9A">
+            <ref role="3uigEE" to="f4zo:~CellAction" resolve="CellAction" />
+          </node>
+          <node concept="3uibUv" id="74LepNSXD17" role="1ajw0F">
+            <ref role="3uigEE" to="f4zo:~EditorCell" resolve="EditorCell" />
+          </node>
+          <node concept="10P_77" id="74LepNSXE6z" role="1ajw0F" />
+        </node>
+      </node>
+    </node>
+    <node concept="3clFb_" id="74LepNSZo7I" role="jymVt">
+      <property role="TrG5h" value="getEndCellAction" />
+      <node concept="3clFbS" id="74LepNSZo7J" role="3clF47" />
+      <node concept="3Tm1VV" id="74LepNSZo7K" role="1B3o_S" />
+      <node concept="37vLTG" id="74LepNSZo7M" role="3clF46">
+        <property role="TrG5h" value="type" />
+        <node concept="3uibUv" id="74LepNSZo7N" role="1tU5fm">
+          <ref role="3uigEE" to="f4zo:~CellActionType" resolve="CellActionType" />
+        </node>
+      </node>
+      <node concept="1ajhzC" id="74LepNSZo7P" role="3clF45">
+        <node concept="3uibUv" id="74LepNSZo7Q" role="1ajl9A">
+          <ref role="3uigEE" to="f4zo:~CellAction" resolve="CellAction" />
+        </node>
+        <node concept="3uibUv" id="74LepNSZo7R" role="1ajw0F">
+          <ref role="3uigEE" to="f4zo:~EditorCell" resolve="EditorCell" />
+        </node>
+        <node concept="10P_77" id="74LepNSZo7S" role="1ajw0F" />
+      </node>
+    </node>
     <node concept="3Tm1VV" id="RywcYwuy7S" role="1B3o_S" />
   </node>
   <node concept="312cEu" id="RywcYwA8jV">
@@ -28331,6 +30632,9 @@
         <node concept="3uibUv" id="1zEStSTbYFA" role="1tU5fm">
           <ref role="3uigEE" to="wyt6:~Object" resolve="Object" />
         </node>
+        <node concept="2AHcQZ" id="7bbwKxsq2BR" role="2AJF6D">
+          <ref role="2AI5Lk" to="mhfm:~Nullable" resolve="Nullable" />
+        </node>
       </node>
       <node concept="3uibUv" id="1zEStSTbOM$" role="3clF45">
         <ref role="3uigEE" node="3olMEllxFAj" resolve="HeaderGrid" />
@@ -28367,6 +30671,9 @@
         <node concept="3uibUv" id="7AHcygoqN6P" role="1tU5fm">
           <ref role="3uigEE" to="wyt6:~Object" resolve="Object" />
         </node>
+        <node concept="2AHcQZ" id="7bbwKxspZog" role="2AJF6D">
+          <ref role="2AI5Lk" to="mhfm:~Nullable" resolve="Nullable" />
+        </node>
       </node>
       <node concept="37vLTG" id="7AHcygoqN6Q" role="3clF46">
         <property role="TrG5h" value="key" />
@@ -28446,12 +30753,18 @@
         <node concept="3uibUv" id="1dAqnm8WxGu" role="1tU5fm">
           <ref role="3uigEE" to="wyt6:~Object" resolve="Object" />
         </node>
+        <node concept="2AHcQZ" id="7bbwKxspW42" role="2AJF6D">
+          <ref role="2AI5Lk" to="mhfm:~Nullable" resolve="Nullable" />
+        </node>
       </node>
       <node concept="37vLTG" id="1YS2uFK90xi" role="3clF46">
         <property role="TrG5h" value="key" />
         <node concept="3uibUv" id="RywcYwH_Ad" role="1tU5fm">
           <ref role="3uigEE" node="7C0FR5AJvc6" resolve="HeaderReference" />
         </node>
+        <node concept="2AHcQZ" id="7bbwKxsuZWX" role="2AJF6D">
+          <ref role="2AI5Lk" to="mhfm:~Nullable" resolve="Nullable" />
+        </node>
       </node>
       <node concept="37vLTG" id="3vPRuXRTVHA" role="3clF46">
         <property role="TrG5h" value="insertAction" />
@@ -28553,6 +30866,9 @@
                       <ref role="3cqZAo" node="1dAqnm8WxFx" resolve="object" />
                     </node>
                   </node>
+                  <node concept="37vLTw" id="7bbwKxsqvdM" role="37wK5m">
+                    <ref role="3cqZAo" node="1YS2uFK90xi" resolve="key" />
+                  </node>
                   <node concept="37vLTw" id="3vPRuXRTZly" role="37wK5m">
                     <ref role="3cqZAo" node="3vPRuXRTVHA" resolve="insertAction" />
                   </node>
@@ -28597,6 +30913,9 @@
                       <ref role="3cqZAo" node="1dAqnm8WxFx" resolve="object" />
                     </node>
                   </node>
+                  <node concept="37vLTw" id="7bbwKxsqAPz" role="37wK5m">
+                    <ref role="3cqZAo" node="1YS2uFK90xi" resolve="key" />
+                  </node>
                   <node concept="37vLTw" id="3vPRuXRU1dT" role="37wK5m">
                     <ref role="3cqZAo" node="3vPRuXRTVHA" resolve="insertAction" />
                   </node>
@@ -28848,6 +31167,15 @@
         <property role="TrG5h" value="text" />
         <node concept="17QB3L" id="1dAqnm8Ye_A" role="1tU5fm" />
       </node>
+      <node concept="37vLTG" id="7bbwKxsqxCm" role="3clF46">
+        <property role="TrG5h" value="key" />
+        <node concept="3uibUv" id="7bbwKxsqxCn" role="1tU5fm">
+          <ref role="3uigEE" node="7C0FR5AJvc6" resolve="HeaderReference" />
+        </node>
+        <node concept="2AHcQZ" id="7bbwKxsqxCo" role="2AJF6D">
+          <ref role="2AI5Lk" to="mhfm:~Nullable" resolve="Nullable" />
+        </node>
+      </node>
       <node concept="37vLTG" id="3vPRuXRTT2x" role="3clF46">
         <property role="TrG5h" value="insertAction" />
         <node concept="3uibUv" id="RywcYwH6SC" role="1tU5fm">
@@ -28875,6 +31203,31 @@
       </node>
       <node concept="3Tm1VV" id="1dAqnm8Yezb" role="1B3o_S" />
       <node concept="3clFbS" id="1dAqnm8Yezc" role="3clF47">
+        <node concept="3clFbJ" id="7bbwKxsr1Uc" role="3cqZAp">
+          <node concept="3clFbS" id="7bbwKxsr1Ue" role="3clFbx">
+            <node concept="3clFbF" id="7bbwKxsr8Ob" role="3cqZAp">
+              <node concept="37vLTI" id="7bbwKxsrbUu" role="3clFbG">
+                <node concept="37vLTw" id="7bbwKxsr8O9" role="37vLTJ">
+                  <ref role="3cqZAo" node="7bbwKxsqxCm" resolve="key" />
+                </node>
+                <node concept="2ShNRf" id="32h0_VGWV4j" role="37vLTx">
+                  <node concept="1pGfFk" id="32h0_VGWWcE" role="2ShVmc">
+                    <ref role="37wK5l" node="3jHPIDnjhnw" resolve="StringHeaderReference" />
+                    <node concept="37vLTw" id="32h0_VGWX7q" role="37wK5m">
+                      <ref role="3cqZAo" node="1dAqnm8Ye_y" resolve="text" />
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+          <node concept="3clFbC" id="7bbwKxsr5iw" role="3clFbw">
+            <node concept="10Nm6u" id="7bbwKxsr79q" role="3uHU7w" />
+            <node concept="37vLTw" id="7bbwKxsr3_A" role="3uHU7B">
+              <ref role="3cqZAo" node="7bbwKxsqxCm" resolve="key" />
+            </node>
+          </node>
+        </node>
         <node concept="3cpWs8" id="1dAqnm8Yg9_" role="3cqZAp">
           <node concept="3cpWsn" id="1dAqnm8Yg9A" role="3cpWs9">
             <property role="TrG5h" value="cell" />
@@ -28903,13 +31256,8 @@
             <node concept="37vLTw" id="1dAqnm8Yz$Y" role="37wK5m">
               <ref role="3cqZAo" node="1dAqnm8Yg9A" resolve="cell" />
             </node>
-            <node concept="2ShNRf" id="32h0_VGWV4j" role="37wK5m">
-              <node concept="1pGfFk" id="32h0_VGWWcE" role="2ShVmc">
-                <ref role="37wK5l" node="3jHPIDnjhnw" resolve="StringHeaderReference" />
-                <node concept="37vLTw" id="32h0_VGWX7q" role="37wK5m">
-                  <ref role="3cqZAo" node="1dAqnm8Ye_y" resolve="text" />
-                </node>
-              </node>
+            <node concept="37vLTw" id="7bbwKxsrh15" role="37wK5m">
+              <ref role="3cqZAo" node="7bbwKxsqxCm" resolve="key" />
             </node>
             <node concept="37vLTw" id="3vPRuXRTUTY" role="37wK5m">
               <ref role="3cqZAo" node="3vPRuXRTT2x" resolve="insertAction" />
@@ -28934,6 +31282,15 @@
         <property role="TrG5h" value="snode" />
         <node concept="3Tqbb2" id="7C0FR5_zu5U" role="1tU5fm" />
       </node>
+      <node concept="37vLTG" id="7bbwKxsqiZZ" role="3clF46">
+        <property role="TrG5h" value="key" />
+        <node concept="3uibUv" id="7bbwKxsqj00" role="1tU5fm">
+          <ref role="3uigEE" node="7C0FR5AJvc6" resolve="HeaderReference" />
+        </node>
+        <node concept="2AHcQZ" id="7bbwKxsqj01" role="2AJF6D">
+          <ref role="2AI5Lk" to="mhfm:~Nullable" resolve="Nullable" />
+        </node>
+      </node>
       <node concept="37vLTG" id="RywcYwL9s0" role="3clF46">
         <property role="TrG5h" value="index" />
         <node concept="10Oyi0" id="RywcYwLciv" role="1tU5fm" />
@@ -28949,6 +31306,9 @@
             <node concept="37vLTw" id="7C0FR5_zu8E" role="37wK5m">
               <ref role="3cqZAo" node="7C0FR5_zsiK" resolve="snode" />
             </node>
+            <node concept="37vLTw" id="7bbwKxsqrNG" role="37wK5m">
+              <ref role="3cqZAo" node="7bbwKxsqiZZ" resolve="key" />
+            </node>
             <node concept="10Nm6u" id="7C0FR5_zub1" role="37wK5m" />
             <node concept="10Nm6u" id="7C0FR5_zueh" role="37wK5m" />
             <node concept="37vLTw" id="RywcYwLck6" role="37wK5m">
@@ -28966,6 +31326,15 @@
         <property role="TrG5h" value="snode" />
         <node concept="3Tqbb2" id="1dAqnm8WT$E" role="1tU5fm" />
       </node>
+      <node concept="37vLTG" id="7bbwKxsq9fB" role="3clF46">
+        <property role="TrG5h" value="key" />
+        <node concept="3uibUv" id="7bbwKxsq9fC" role="1tU5fm">
+          <ref role="3uigEE" node="7C0FR5AJvc6" resolve="HeaderReference" />
+        </node>
+        <node concept="2AHcQZ" id="7bbwKxsq9fD" role="2AJF6D">
+          <ref role="2AI5Lk" to="mhfm:~Nullable" resolve="Nullable" />
+        </node>
+      </node>
       <node concept="37vLTG" id="3vPRuXRTRXW" role="3clF46">
         <property role="TrG5h" value="insertAction" />
         <node concept="3uibUv" id="RywcYwH47O" role="1tU5fm">
@@ -28993,6 +31362,30 @@
       </node>
       <node concept="3Tm1VV" id="1dAqnm8WSGf" role="1B3o_S" />
       <node concept="3clFbS" id="1dAqnm8WSGg" role="3clF47">
+        <node concept="3clFbJ" id="7bbwKxsqFip" role="3cqZAp">
+          <node concept="3clFbS" id="7bbwKxsqFir" role="3clFbx">
+            <node concept="3clFbF" id="7bbwKxsqU8q" role="3cqZAp">
+              <node concept="37vLTI" id="7bbwKxsqWYo" role="3clFbG">
+                <node concept="37vLTw" id="7bbwKxsqU8o" role="37vLTJ">
+                  <ref role="3cqZAo" node="7bbwKxsq9fB" resolve="key" />
+                </node>
+                <node concept="2YIFZM" id="RywcYwKG_8" role="37vLTx">
+                  <ref role="37wK5l" node="3olMEll_nOo" resolve="fromSNode" />
+                  <ref role="1Pybhc" node="3jHPIDnje7S" resolve="StringHeaderReference" />
+                  <node concept="37vLTw" id="RywcYwKGDR" role="37wK5m">
+                    <ref role="3cqZAo" node="1dAqnm8WT$A" resolve="snode" />
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+          <node concept="3clFbC" id="7bbwKxsqIT_" role="3clFbw">
+            <node concept="10Nm6u" id="7bbwKxsqKK9" role="3uHU7w" />
+            <node concept="37vLTw" id="7bbwKxsqH4_" role="3uHU7B">
+              <ref role="3cqZAo" node="7bbwKxsq9fB" resolve="key" />
+            </node>
+          </node>
+        </node>
         <node concept="3cpWs8" id="1362cT3ki_b" role="3cqZAp">
           <node concept="3cpWsn" id="1362cT3ki_c" role="3cpWs9">
             <property role="TrG5h" value="cell" />
@@ -29047,12 +31440,8 @@
             <node concept="37vLTw" id="1362cT3kiHh" role="37wK5m">
               <ref role="3cqZAo" node="1362cT3ki_c" resolve="cell" />
             </node>
-            <node concept="2YIFZM" id="RywcYwKG_8" role="37wK5m">
-              <ref role="37wK5l" node="3olMEll_nOo" resolve="fromSNode" />
-              <ref role="1Pybhc" node="3jHPIDnje7S" resolve="StringHeaderReference" />
-              <node concept="37vLTw" id="RywcYwKGDR" role="37wK5m">
-                <ref role="3cqZAo" node="1dAqnm8WT$A" resolve="snode" />
-              </node>
+            <node concept="37vLTw" id="7bbwKxsqg3Y" role="37wK5m">
+              <ref role="3cqZAo" node="7bbwKxsq9fB" resolve="key" />
             </node>
             <node concept="37vLTw" id="RywcYwKGOe" role="37wK5m">
               <ref role="3cqZAo" node="3vPRuXRTRXW" resolve="insertAction" />
@@ -29472,7 +31861,6 @@
             </node>
           </node>
         </node>
-        <node concept="3clFbH" id="7o4gcyfAmk9" role="3cqZAp" />
         <node concept="3clFbF" id="RywcYwKhAr" role="3cqZAp">
           <node concept="2OqwBi" id="RywcYwKi_i" role="3clFbG">
             <node concept="37vLTw" id="RywcYwKhAq" role="2Oq$k0">
@@ -29512,6 +31900,9 @@
         <node concept="3uibUv" id="RywcYwHMud" role="1tU5fm">
           <ref role="3uigEE" node="7C0FR5AJvc6" resolve="HeaderReference" />
         </node>
+        <node concept="2AHcQZ" id="7bbwKxspRdW" role="2AJF6D">
+          <ref role="2AI5Lk" to="mhfm:~Nullable" resolve="Nullable" />
+        </node>
       </node>
       <node concept="37vLTG" id="3vPRuXRTHd0" role="3clF46">
         <property role="TrG5h" value="insertAction" />
@@ -29556,6 +31947,9 @@
         <node concept="3uibUv" id="RywcYwM1zA" role="1tU5fm">
           <ref role="3uigEE" node="7C0FR5AJvc6" resolve="HeaderReference" />
         </node>
+        <node concept="2AHcQZ" id="7bbwKxsrtKj" role="2AJF6D">
+          <ref role="2AI5Lk" to="mhfm:~Nullable" resolve="Nullable" />
+        </node>
       </node>
       <node concept="37vLTG" id="3vPRuXRTPbM" role="3clF46">
         <property role="TrG5h" value="insertAction" />
@@ -29584,6 +31978,7 @@
       </node>
       <node concept="3Tm1VV" id="1dAqnm8WxYn" role="1B3o_S" />
       <node concept="3clFbS" id="1dAqnm8WxYo" role="3clF47">
+        <node concept="3clFbH" id="7bbwKxsskM9" role="3cqZAp" />
         <node concept="3cpWs8" id="1dAqnm8WBIY" role="3cqZAp">
           <node concept="3cpWsn" id="1dAqnm8WBIZ" role="3cpWs9">
             <property role="TrG5h" value="grids" />
@@ -29628,6 +32023,73 @@
             <property role="TrG5h" value="object" />
           </node>
           <node concept="3clFbS" id="1dAqnm8WBJb" role="2LFqv$">
+            <node concept="3cpWs8" id="7bbwKxssxpu" role="3cqZAp">
+              <node concept="3cpWsn" id="7bbwKxssxpv" role="3cpWs9">
+                <property role="TrG5h" value="currentKey" />
+                <node concept="3uibUv" id="7bbwKxssxpw" role="1tU5fm">
+                  <ref role="3uigEE" node="7C0FR5AJvc6" resolve="HeaderReference" />
+                </node>
+              </node>
+            </node>
+            <node concept="3clFbJ" id="7bbwKxss_WT" role="3cqZAp">
+              <node concept="3clFbS" id="7bbwKxss_WV" role="3clFbx">
+                <node concept="3clFbF" id="7bbwKxssFlB" role="3cqZAp">
+                  <node concept="37vLTI" id="7bbwKxssIxz" role="3clFbG">
+                    <node concept="37vLTw" id="7bbwKxssFl_" role="37vLTJ">
+                      <ref role="3cqZAo" node="7bbwKxssxpv" resolve="currentKey" />
+                    </node>
+                    <node concept="2ShNRf" id="7bbwKxssUwE" role="37vLTx">
+                      <node concept="1pGfFk" id="7bbwKxssX2a" role="2ShVmc">
+                        <property role="373rjd" value="true" />
+                        <ref role="37wK5l" node="3jHPIDnjhnw" resolve="StringHeaderReference" />
+                        <node concept="3cpWs3" id="7bbwKxstyW$" role="37wK5m">
+                          <node concept="37vLTw" id="7bbwKxstzS8" role="3uHU7w">
+                            <ref role="3cqZAo" node="7AHcygoqxkc" resolve="index" />
+                          </node>
+                          <node concept="3cpWs3" id="7bbwKxstvbd" role="3uHU7B">
+                            <node concept="2OqwBi" id="7bbwKxst1rO" role="3uHU7B">
+                              <node concept="37vLTw" id="7bbwKxst056" role="2Oq$k0">
+                                <ref role="3cqZAo" node="2Jt5bYCJHat" resolve="key" />
+                              </node>
+                              <node concept="liA8E" id="7bbwKxstn9w" role="2OqNvi">
+                                <ref role="37wK5l" node="1cFYsK3i7IW" resolve="getFallbackText" />
+                              </node>
+                            </node>
+                            <node concept="Xl_RD" id="7bbwKxstvdR" role="3uHU7w">
+                              <property role="Xl_RC" value="_" />
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                    </node>
+                  </node>
+                </node>
+              </node>
+              <node concept="3y3z36" id="7bbwKxssDwb" role="3clFbw">
+                <node concept="10Nm6u" id="7bbwKxssDEI" role="3uHU7w" />
+                <node concept="37vLTw" id="7bbwKxssBEO" role="3uHU7B">
+                  <ref role="3cqZAo" node="2Jt5bYCJHat" resolve="key" />
+                </node>
+              </node>
+              <node concept="9aQIb" id="7bbwKxst_xp" role="9aQIa">
+                <node concept="3clFbS" id="7bbwKxst_xq" role="9aQI4">
+                  <node concept="3clFbF" id="7bbwKxstBdr" role="3cqZAp">
+                    <node concept="37vLTI" id="7bbwKxstD80" role="3clFbG">
+                      <node concept="37vLTw" id="7bbwKxstBdq" role="37vLTJ">
+                        <ref role="3cqZAo" node="7bbwKxssxpv" resolve="currentKey" />
+                      </node>
+                      <node concept="2YIFZM" id="RywcYwOrrL" role="37vLTx">
+                        <ref role="37wK5l" node="RywcYwOo7d" resolve="fromObject" />
+                        <ref role="1Pybhc" node="3jHPIDnje7S" resolve="StringHeaderReference" />
+                        <node concept="2GrUjf" id="RywcYwOuuc" role="37wK5m">
+                          <ref role="2Gs0qQ" node="1dAqnm8WBJa" resolve="object" />
+                        </node>
+                      </node>
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
             <node concept="3clFbF" id="1dAqnm8WBJc" role="3cqZAp">
               <node concept="2OqwBi" id="1dAqnm8WBJd" role="3clFbG">
                 <node concept="liA8E" id="1dAqnm8WBJe" role="2OqNvi">
@@ -29645,12 +32107,8 @@
                         </node>
                       </node>
                       <node concept="10Nm6u" id="3vPRuXSmRP$" role="3K4E3e" />
-                      <node concept="2YIFZM" id="RywcYwOrrL" role="3K4GZi">
-                        <ref role="37wK5l" node="RywcYwOo7d" resolve="fromObject" />
-                        <ref role="1Pybhc" node="3jHPIDnje7S" resolve="StringHeaderReference" />
-                        <node concept="2GrUjf" id="RywcYwOuuc" role="37wK5m">
-                          <ref role="2Gs0qQ" node="1dAqnm8WBJa" resolve="object" />
-                        </node>
+                      <node concept="37vLTw" id="7bbwKxstGrL" role="3K4GZi">
+                        <ref role="3cqZAo" node="7bbwKxssxpv" resolve="currentKey" />
                       </node>
                     </node>
                     <node concept="37vLTw" id="3vPRuXRUa1w" role="37wK5m">
@@ -32051,6 +34509,22 @@
         </node>
       </node>
       <node concept="3clFbS" id="28GSY8ardE0" role="3clF47">
+        <node concept="3clFbF" id="25cxNQTk8Ry" role="3cqZAp">
+          <node concept="1rXfSq" id="25cxNQTk8Rx" role="3clFbG">
+            <ref role="37wK5l" node="25cxNQTk8rV" resolve="delete" />
+          </node>
+        </node>
+      </node>
+    </node>
+    <node concept="2tJIrI" id="25cxNQTk8lL" role="jymVt" />
+    <node concept="3uibUv" id="25cxNQTk7QI" role="EKbjA">
+      <ref role="3uigEE" node="25cxNQTj_G3" resolve="IRowDeleteHandler" />
+    </node>
+    <node concept="3clFb_" id="25cxNQTk8rV" role="jymVt">
+      <property role="TrG5h" value="delete" />
+      <node concept="3cqZAl" id="25cxNQTk8rW" role="3clF45" />
+      <node concept="3Tm1VV" id="25cxNQTk8rX" role="1B3o_S" />
+      <node concept="3clFbS" id="25cxNQTk8s1" role="3clF47">
         <node concept="3clFbF" id="28GSY8arpmK" role="3cqZAp">
           <node concept="2OqwBi" id="28GSY8arpqp" role="3clFbG">
             <node concept="37vLTw" id="28GSY8arpmJ" role="2Oq$k0">
@@ -32065,6 +34539,9 @@
           </node>
         </node>
       </node>
+      <node concept="2AHcQZ" id="25cxNQTk8s2" role="2AJF6D">
+        <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
+      </node>
     </node>
   </node>
   <node concept="312cEu" id="28GSY8argwZ">
@@ -32136,17 +34613,9 @@
         </node>
       </node>
       <node concept="3clFbS" id="28GSY8argxu" role="3clF47">
-        <node concept="3clFbF" id="28GSY8arl3L" role="3cqZAp">
-          <node concept="2OqwBi" id="28GSY8arl7r" role="3clFbG">
-            <node concept="37vLTw" id="28GSY8arl3K" role="2Oq$k0">
-              <ref role="3cqZAo" node="28GSY8ariXM" resolve="myAction" />
-            </node>
-            <node concept="liA8E" id="28GSY8arlyS" role="2OqNvi">
-              <ref role="37wK5l" node="3vPRuXRTtq4" resolve="insertNew" />
-              <node concept="37vLTw" id="28GSY8arlBh" role="37wK5m">
-                <ref role="3cqZAo" node="28GSY8argx3" resolve="myIndex" />
-              </node>
-            </node>
+        <node concept="3clFbF" id="25cxNQTk8dB" role="3cqZAp">
+          <node concept="1rXfSq" id="25cxNQTk8dA" role="3clFbG">
+            <ref role="37wK5l" node="7EUu569mp0R" resolve="create" />
           </node>
         </node>
       </node>
@@ -32730,6 +35199,105 @@
                 </node>
               </node>
               <node concept="3zACq4" id="3t1pVywixQ7" role="3cqZAp" />
+              <node concept="3clFbH" id="25cxNQTNBLo" role="3cqZAp" />
+            </node>
+          </node>
+          <node concept="3KbdKl" id="25cxNQTNBZt" role="3KbHQx">
+            <node concept="Rm8GO" id="25cxNQTNGUW" role="3Kbmr1">
+              <ref role="Rm8GQ" to="f4zo:~CellActionType.BACKSPACE" resolve="BACKSPACE" />
+              <ref role="1Px2BO" to="f4zo:~CellActionType" resolve="CellActionType" />
+            </node>
+            <node concept="3clFbS" id="25cxNQTNBZv" role="3Kbo56">
+              <node concept="3clFbF" id="25cxNQTNBZw" role="3cqZAp">
+                <node concept="2OqwBi" id="25cxNQTNBZx" role="3clFbG">
+                  <node concept="37vLTw" id="25cxNQTNBZy" role="2Oq$k0">
+                    <ref role="3cqZAo" node="3t1pVywiesE" resolve="myGridElement" />
+                  </node>
+                  <node concept="liA8E" id="25cxNQTNBZz" role="2OqNvi">
+                    <ref role="37wK5l" node="WOxe9PtF7I" resolve="setDeleteAction" />
+                    <node concept="37vLTw" id="25cxNQTNBZ$" role="37wK5m">
+                      <ref role="3cqZAo" node="3t1pVywiedp" resolve="action" />
+                    </node>
+                    <node concept="37vLTw" id="25cxNQTNBZP" role="37wK5m">
+                      <ref role="3cqZAo" node="3t1pVywmbQQ" resolve="PRIORITY" />
+                    </node>
+                  </node>
+                </node>
+              </node>
+              <node concept="3clFbF" id="25cxNQTNBZ_" role="3cqZAp">
+                <node concept="2OqwBi" id="25cxNQTNBZA" role="3clFbG">
+                  <node concept="37vLTw" id="25cxNQTNBZB" role="2Oq$k0">
+                    <ref role="3cqZAo" node="3t1pVywiesE" resolve="myGridElement" />
+                  </node>
+                  <node concept="liA8E" id="25cxNQTNBZC" role="2OqNvi">
+                    <ref role="37wK5l" node="25cxNQTnhzL" resolve="setLeftRowDeleteHandler" />
+                    <node concept="2ShNRf" id="25cxNQTNBZD" role="37wK5m">
+                      <node concept="1pGfFk" id="25cxNQTNBZE" role="2ShVmc">
+                        <ref role="37wK5l" node="25cxNQTNE5k" resolve="ActionToRowDeleteAdapter" />
+                        <node concept="37vLTw" id="25cxNQTNBZF" role="37wK5m">
+                          <ref role="3cqZAo" node="3t1pVywiedp" resolve="action" />
+                        </node>
+                        <node concept="1rXfSq" id="25cxNQTNBZG" role="37wK5m">
+                          <ref role="37wK5l" to="g51k:~EditorCell_Basic.getContext()" resolve="getContext" />
+                        </node>
+                      </node>
+                    </node>
+                    <node concept="37vLTw" id="25cxNQTNBZY" role="37wK5m">
+                      <ref role="3cqZAo" node="3t1pVywmbQQ" resolve="PRIORITY" />
+                    </node>
+                  </node>
+                </node>
+              </node>
+              <node concept="3zACq4" id="25cxNQTNBZH" role="3cqZAp" />
+            </node>
+          </node>
+          <node concept="3KbdKl" id="25cxNQTNC00" role="3KbHQx">
+            <node concept="Rm8GO" id="25cxNQTNHbN" role="3Kbmr1">
+              <ref role="Rm8GQ" to="f4zo:~CellActionType.DELETE" resolve="DELETE" />
+              <ref role="1Px2BO" to="f4zo:~CellActionType" resolve="CellActionType" />
+            </node>
+            <node concept="3clFbS" id="25cxNQTNC02" role="3Kbo56">
+              <node concept="3clFbF" id="25cxNQTNC03" role="3cqZAp">
+                <node concept="2OqwBi" id="25cxNQTNC04" role="3clFbG">
+                  <node concept="37vLTw" id="25cxNQTNC05" role="2Oq$k0">
+                    <ref role="3cqZAo" node="3t1pVywiesE" resolve="myGridElement" />
+                  </node>
+                  <node concept="liA8E" id="25cxNQTNC06" role="2OqNvi">
+                    <ref role="37wK5l" node="WOxe9PtF7I" resolve="setDeleteAction" />
+                    <node concept="37vLTw" id="25cxNQTNC07" role="37wK5m">
+                      <ref role="3cqZAo" node="3t1pVywiedp" resolve="action" />
+                    </node>
+                    <node concept="37vLTw" id="25cxNQTNC0o" role="37wK5m">
+                      <ref role="3cqZAo" node="3t1pVywmbQQ" resolve="PRIORITY" />
+                    </node>
+                  </node>
+                </node>
+              </node>
+              <node concept="3clFbF" id="25cxNQTNG9T" role="3cqZAp">
+                <node concept="2OqwBi" id="25cxNQTNG9U" role="3clFbG">
+                  <node concept="37vLTw" id="25cxNQTNG9V" role="2Oq$k0">
+                    <ref role="3cqZAo" node="3t1pVywiesE" resolve="myGridElement" />
+                  </node>
+                  <node concept="liA8E" id="25cxNQTNG9W" role="2OqNvi">
+                    <ref role="37wK5l" node="25cxNQTnhzT" resolve="setRightRowDeleteHandler" />
+                    <node concept="2ShNRf" id="25cxNQTNG9X" role="37wK5m">
+                      <node concept="1pGfFk" id="25cxNQTNG9Y" role="2ShVmc">
+                        <ref role="37wK5l" node="25cxNQTNE5k" resolve="ActionToRowDeleteAdapter" />
+                        <node concept="37vLTw" id="25cxNQTNG9Z" role="37wK5m">
+                          <ref role="3cqZAo" node="3t1pVywiedp" resolve="action" />
+                        </node>
+                        <node concept="1rXfSq" id="25cxNQTNGa0" role="37wK5m">
+                          <ref role="37wK5l" to="g51k:~EditorCell_Basic.getContext()" resolve="getContext" />
+                        </node>
+                      </node>
+                    </node>
+                    <node concept="37vLTw" id="25cxNQTNGa8" role="37wK5m">
+                      <ref role="3cqZAo" node="3t1pVywmbQQ" resolve="PRIORITY" />
+                    </node>
+                  </node>
+                </node>
+              </node>
+              <node concept="3zACq4" id="25cxNQTNC0g" role="3cqZAp" />
             </node>
           </node>
           <node concept="37vLTw" id="3t1pVywihS4" role="3KbGdf">
@@ -32764,5 +35332,178 @@
       <node concept="3clFbS" id="3t1pVywiA9n" role="3clF47" />
     </node>
   </node>
+  <node concept="3HP615" id="25cxNQTj_G3">
+    <property role="TrG5h" value="IRowDeleteHandler" />
+    <node concept="3clFb_" id="25cxNQTj_G4" role="jymVt">
+      <property role="TrG5h" value="delete" />
+      <node concept="3cqZAl" id="25cxNQTj_G5" role="3clF45" />
+      <node concept="3Tm1VV" id="25cxNQTj_G6" role="1B3o_S" />
+      <node concept="3clFbS" id="25cxNQTj_G7" role="3clF47" />
+    </node>
+    <node concept="3Tm1VV" id="25cxNQTj_G8" role="1B3o_S" />
+  </node>
+  <node concept="312cEu" id="25cxNQTnLqM">
+    <property role="TrG5h" value="RowDeleteHandlerAdapter" />
+    <node concept="312cEg" id="25cxNQTnLqN" role="jymVt">
+      <property role="34CwA1" value="false" />
+      <property role="eg7rD" value="false" />
+      <property role="TrG5h" value="myHandler" />
+      <property role="3TUv4t" value="false" />
+      <node concept="3uibUv" id="25cxNQTnLqO" role="1tU5fm">
+        <ref role="3uigEE" node="25cxNQTj_G3" resolve="IRowDeleteHandler" />
+      </node>
+      <node concept="3Tm6S6" id="25cxNQTnLqP" role="1B3o_S" />
+    </node>
+    <node concept="2tJIrI" id="25cxNQTnLqQ" role="jymVt" />
+    <node concept="3clFbW" id="25cxNQTnLqR" role="jymVt">
+      <node concept="3cqZAl" id="25cxNQTnLqS" role="3clF45" />
+      <node concept="3Tm1VV" id="25cxNQTnLqT" role="1B3o_S" />
+      <node concept="3clFbS" id="25cxNQTnLqU" role="3clF47">
+        <node concept="3clFbF" id="25cxNQTnLqV" role="3cqZAp">
+          <node concept="37vLTI" id="25cxNQTnLqW" role="3clFbG">
+            <node concept="37vLTw" id="25cxNQTnLqX" role="37vLTx">
+              <ref role="3cqZAo" node="25cxNQTnLqZ" resolve="handler" />
+            </node>
+            <node concept="37vLTw" id="25cxNQTnLqY" role="37vLTJ">
+              <ref role="3cqZAo" node="25cxNQTnLqN" resolve="myHandler" />
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="37vLTG" id="25cxNQTnLqZ" role="3clF46">
+        <property role="TrG5h" value="handler" />
+        <node concept="3uibUv" id="25cxNQTnLr0" role="1tU5fm">
+          <ref role="3uigEE" node="25cxNQTj_G3" resolve="IRowDeleteHandler" />
+        </node>
+      </node>
+    </node>
+    <node concept="2tJIrI" id="25cxNQTnLr1" role="jymVt" />
+    <node concept="3Tm1VV" id="25cxNQTnLr2" role="1B3o_S" />
+    <node concept="3uibUv" id="25cxNQTnLr3" role="1zkMxy">
+      <ref role="3uigEE" to="3ahc:~AbstractCellAction" resolve="AbstractCellAction" />
+    </node>
+    <node concept="3clFb_" id="25cxNQTnLr4" role="jymVt">
+      <property role="1EzhhJ" value="false" />
+      <property role="TrG5h" value="execute" />
+      <property role="DiZV1" value="false" />
+      <node concept="3Tm1VV" id="25cxNQTnLr5" role="1B3o_S" />
+      <node concept="3cqZAl" id="25cxNQTnLr6" role="3clF45" />
+      <node concept="37vLTG" id="25cxNQTnLr7" role="3clF46">
+        <property role="TrG5h" value="context" />
+        <node concept="3uibUv" id="25cxNQTnLr8" role="1tU5fm">
+          <ref role="3uigEE" to="cj4x:~EditorContext" resolve="EditorContext" />
+        </node>
+      </node>
+      <node concept="3clFbS" id="25cxNQTnLr9" role="3clF47">
+        <node concept="3clFbF" id="25cxNQTnLra" role="3cqZAp">
+          <node concept="2OqwBi" id="25cxNQTnLrb" role="3clFbG">
+            <node concept="37vLTw" id="25cxNQTnLrc" role="2Oq$k0">
+              <ref role="3cqZAo" node="25cxNQTnLqN" resolve="myHandler" />
+            </node>
+            <node concept="liA8E" id="25cxNQTnLrd" role="2OqNvi">
+              <ref role="37wK5l" node="25cxNQTj_G4" resolve="delete" />
+            </node>
+          </node>
+        </node>
+      </node>
+    </node>
+  </node>
+  <node concept="312cEu" id="25cxNQTNE5a">
+    <property role="TrG5h" value="ActionToRowDeleteAdapter" />
+    <node concept="3Tm1VV" id="25cxNQTNE5b" role="1B3o_S" />
+    <node concept="3uibUv" id="25cxNQTNFyK" role="EKbjA">
+      <ref role="3uigEE" node="25cxNQTj_G3" resolve="IRowDeleteHandler" />
+    </node>
+    <node concept="312cEg" id="25cxNQTNE5d" role="jymVt">
+      <property role="TrG5h" value="action" />
+      <node concept="3Tm6S6" id="25cxNQTNE5e" role="1B3o_S" />
+      <node concept="3uibUv" id="25cxNQTNE5f" role="1tU5fm">
+        <ref role="3uigEE" to="f4zo:~CellAction" resolve="CellAction" />
+      </node>
+    </node>
+    <node concept="312cEg" id="25cxNQTNE5g" role="jymVt">
+      <property role="TrG5h" value="context" />
+      <node concept="3Tm6S6" id="25cxNQTNE5h" role="1B3o_S" />
+      <node concept="3uibUv" id="25cxNQTNE5i" role="1tU5fm">
+        <ref role="3uigEE" to="cj4x:~EditorContext" resolve="EditorContext" />
+      </node>
+    </node>
+    <node concept="2tJIrI" id="25cxNQTNE5j" role="jymVt" />
+    <node concept="3clFbW" id="25cxNQTNE5k" role="jymVt">
+      <node concept="3cqZAl" id="25cxNQTNE5l" role="3clF45" />
+      <node concept="3Tm1VV" id="25cxNQTNE5m" role="1B3o_S" />
+      <node concept="3clFbS" id="25cxNQTNE5n" role="3clF47">
+        <node concept="3clFbF" id="25cxNQTNE5o" role="3cqZAp">
+          <node concept="37vLTI" id="25cxNQTNE5p" role="3clFbG">
+            <node concept="37vLTw" id="25cxNQTNE5q" role="37vLTJ">
+              <ref role="3cqZAo" node="25cxNQTNE5d" resolve="action" />
+            </node>
+            <node concept="37vLTw" id="25cxNQTNE5r" role="37vLTx">
+              <ref role="3cqZAo" node="25cxNQTNE5w" resolve="action1" />
+            </node>
+          </node>
+        </node>
+        <node concept="3clFbF" id="25cxNQTNE5s" role="3cqZAp">
+          <node concept="37vLTI" id="25cxNQTNE5t" role="3clFbG">
+            <node concept="37vLTw" id="25cxNQTNE5u" role="37vLTJ">
+              <ref role="3cqZAo" node="25cxNQTNE5g" resolve="context" />
+            </node>
+            <node concept="37vLTw" id="25cxNQTNE5v" role="37vLTx">
+              <ref role="3cqZAo" node="25cxNQTNE5y" resolve="context1" />
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="37vLTG" id="25cxNQTNE5w" role="3clF46">
+        <property role="TrG5h" value="action1" />
+        <node concept="3uibUv" id="25cxNQTNE5x" role="1tU5fm">
+          <ref role="3uigEE" to="f4zo:~CellAction" resolve="CellAction" />
+        </node>
+      </node>
+      <node concept="37vLTG" id="25cxNQTNE5y" role="3clF46">
+        <property role="TrG5h" value="context1" />
+        <node concept="3uibUv" id="25cxNQTNE5z" role="1tU5fm">
+          <ref role="3uigEE" to="cj4x:~EditorContext" resolve="EditorContext" />
+        </node>
+      </node>
+    </node>
+    <node concept="2tJIrI" id="25cxNQTNE5$" role="jymVt" />
+    <node concept="3clFb_" id="25cxNQTNE5_" role="jymVt">
+      <property role="1EzhhJ" value="false" />
+      <property role="TrG5h" value="delete" />
+      <node concept="3cqZAl" id="25cxNQTNE5A" role="3clF45" />
+      <node concept="3Tm1VV" id="25cxNQTNE5B" role="1B3o_S" />
+      <node concept="3clFbS" id="25cxNQTNE5C" role="3clF47">
+        <node concept="3clFbJ" id="25cxNQTNE5D" role="3cqZAp">
+          <node concept="3clFbS" id="25cxNQTNE5E" role="3clFbx">
+            <node concept="3clFbF" id="25cxNQTNE5F" role="3cqZAp">
+              <node concept="2OqwBi" id="25cxNQTNE5G" role="3clFbG">
+                <node concept="37vLTw" id="25cxNQTNE5H" role="2Oq$k0">
+                  <ref role="3cqZAo" node="25cxNQTNE5d" resolve="action" />
+                </node>
+                <node concept="liA8E" id="25cxNQTNE5I" role="2OqNvi">
+                  <ref role="37wK5l" to="f4zo:~CellAction.execute(jetbrains.mps.openapi.editor.EditorContext)" resolve="execute" />
+                  <node concept="37vLTw" id="25cxNQTNE5J" role="37wK5m">
+                    <ref role="3cqZAo" node="25cxNQTNE5g" resolve="context" />
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+          <node concept="2OqwBi" id="25cxNQTNE5K" role="3clFbw">
+            <node concept="37vLTw" id="25cxNQTNE5L" role="2Oq$k0">
+              <ref role="3cqZAo" node="25cxNQTNE5d" resolve="action" />
+            </node>
+            <node concept="liA8E" id="25cxNQTNE5M" role="2OqNvi">
+              <ref role="37wK5l" to="f4zo:~CellAction.canExecute(jetbrains.mps.openapi.editor.EditorContext)" resolve="canExecute" />
+              <node concept="37vLTw" id="25cxNQTNE5N" role="37wK5m">
+                <ref role="3cqZAo" node="25cxNQTNE5g" resolve="context" />
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+    </node>
+  </node>
 </model>
 
diff --git a/code/tables/languages/de.slisson.mps.tables/runtime/models/de/slisson/mps/tables/runtime/plugin.mps b/code/tables/languages/de.slisson.mps.tables/runtime/models/de/slisson/mps/tables/runtime/plugin.mps
index bc5789734..357ab8b90 100644
--- a/code/tables/languages/de.slisson.mps.tables/runtime/models/de/slisson/mps/tables/runtime/plugin.mps
+++ b/code/tables/languages/de.slisson.mps.tables/runtime/models/de/slisson/mps/tables/runtime/plugin.mps
@@ -91,6 +91,10 @@
         <child id="1197027771414" name="operand" index="2Oq$k0" />
         <child id="1197027833540" name="operation" index="2OqNvi" />
       </concept>
+      <concept id="1083260308424" name="jetbrains.mps.baseLanguage.structure.EnumConstantReference" flags="nn" index="Rm8GO">
+        <reference id="1083260308426" name="enumConstantDeclaration" index="Rm8GQ" />
+        <reference id="1144432896254" name="enumClass" index="1Px2BO" />
+      </concept>
       <concept id="1145552977093" name="jetbrains.mps.baseLanguage.structure.GenericNewExpression" flags="nn" index="2ShNRf">
         <child id="1145553007750" name="creator" index="2ShVmc" />
       </concept>
@@ -622,13 +626,21 @@
             <node concept="2ShNRf" id="7IUya7cjmzT" role="2Oq$k0">
               <node concept="1pGfFk" id="7IUya7cjmzU" role="2ShVmc">
                 <property role="373rjd" value="true" />
-                <ref role="37wK5l" to="hm5v:7IUya7ciSfI" resolve="TableActions.DeleteRowAction" />
+                <ref role="37wK5l" to="hm5v:63uETA6qqIK" resolve="TableActions.DeleteRowAction" />
                 <node concept="2OqwBi" id="7IUya7cjmzV" role="37wK5m">
                   <node concept="2WthIp" id="7IUya7cjmzW" role="2Oq$k0" />
                   <node concept="1DTwFV" id="7IUya7cjmzX" role="2OqNvi">
                     <ref role="2WH_rO" node="7IUya7c4kto" resolve="cell" />
                   </node>
                 </node>
+                <node concept="3clFbT" id="63uETA6sKLl" role="37wK5m">
+                  <property role="3clFbU" value="true" />
+                </node>
+                <node concept="Rm8GO" id="74LepNU8tah" role="37wK5m">
+                  <ref role="Rm8GQ" to="hm5v:74LepNTVASM" resolve="DELETE" />
+                  <ref role="1Px2BO" to="hm5v:74LepNTV$5n" resolve="TableActions.DeleteRowAction.DeleteType" />
+                </node>
+                <node concept="3clFbT" id="74LepNU8thk" role="37wK5m" />
               </node>
             </node>
             <node concept="liA8E" id="7IUya7cjmzY" role="2OqNvi">
@@ -661,13 +673,21 @@
             <node concept="2ShNRf" id="7IUya7cj8SK" role="2Oq$k0">
               <node concept="1pGfFk" id="7IUya7cj94f" role="2ShVmc">
                 <property role="373rjd" value="true" />
-                <ref role="37wK5l" to="hm5v:7IUya7ciSfI" resolve="TableActions.DeleteRowAction" />
+                <ref role="37wK5l" to="hm5v:63uETA6qqIK" resolve="TableActions.DeleteRowAction" />
                 <node concept="2OqwBi" id="7IUya7cj99U" role="37wK5m">
                   <node concept="2WthIp" id="7IUya7cj99X" role="2Oq$k0" />
                   <node concept="1DTwFV" id="7IUya7cj99Z" role="2OqNvi">
                     <ref role="2WH_rO" node="7IUya7c4kto" resolve="cell" />
                   </node>
                 </node>
+                <node concept="3clFbT" id="63uETA6sKub" role="37wK5m">
+                  <property role="3clFbU" value="true" />
+                </node>
+                <node concept="Rm8GO" id="74LepNU8sZR" role="37wK5m">
+                  <ref role="Rm8GQ" to="hm5v:74LepNTVASM" resolve="DELETE" />
+                  <ref role="1Px2BO" to="hm5v:74LepNTV$5n" resolve="TableActions.DeleteRowAction.DeleteType" />
+                </node>
+                <node concept="3clFbT" id="74LepNU8t63" role="37wK5m" />
               </node>
             </node>
             <node concept="liA8E" id="7IUya7cja2q" role="2OqNvi">
@@ -749,7 +769,7 @@
             <node concept="2ShNRf" id="7IUya7cjq3c" role="2Oq$k0">
               <node concept="1pGfFk" id="7IUya7cjq3d" role="2ShVmc">
                 <property role="373rjd" value="true" />
-                <ref role="37wK5l" to="hm5v:7IUya7cfM4j" resolve="TableActions.InsertRowAction" />
+                <ref role="37wK5l" to="hm5v:63uETA6pMka" resolve="TableActions.InsertRowAction" />
                 <node concept="2OqwBi" id="7IUya7cjq3e" role="37wK5m">
                   <node concept="2WthIp" id="7IUya7cjq3f" role="2Oq$k0" />
                   <node concept="1DTwFV" id="7IUya7cjq3g" role="2OqNvi">
@@ -759,6 +779,9 @@
                 <node concept="3clFbT" id="7IUya7cjq3h" role="37wK5m">
                   <property role="3clFbU" value="true" />
                 </node>
+                <node concept="3clFbT" id="63uETA6sO5G" role="37wK5m">
+                  <property role="3clFbU" value="true" />
+                </node>
               </node>
             </node>
             <node concept="liA8E" id="7IUya7cjq3i" role="2OqNvi">
@@ -791,7 +814,7 @@
             <node concept="2ShNRf" id="7IUya7cjo98" role="2Oq$k0">
               <node concept="1pGfFk" id="7IUya7cjon5" role="2ShVmc">
                 <property role="373rjd" value="true" />
-                <ref role="37wK5l" to="hm5v:7IUya7cfM4j" resolve="TableActions.InsertRowAction" />
+                <ref role="37wK5l" to="hm5v:63uETA6pMka" resolve="TableActions.InsertRowAction" />
                 <node concept="2OqwBi" id="7IUya7cjoA_" role="37wK5m">
                   <node concept="2WthIp" id="7IUya7cjoAC" role="2Oq$k0" />
                   <node concept="1DTwFV" id="7IUya7cjoAE" role="2OqNvi">
@@ -801,6 +824,9 @@
                 <node concept="3clFbT" id="7IUya7cjp8l" role="37wK5m">
                   <property role="3clFbU" value="true" />
                 </node>
+                <node concept="3clFbT" id="63uETA6sO2o" role="37wK5m">
+                  <property role="3clFbU" value="true" />
+                </node>
               </node>
             </node>
             <node concept="liA8E" id="7IUya7cjpvh" role="2OqNvi">
@@ -832,7 +858,7 @@
             <node concept="2ShNRf" id="7IUya7cjqna" role="2Oq$k0">
               <node concept="1pGfFk" id="7IUya7cjqnb" role="2ShVmc">
                 <property role="373rjd" value="true" />
-                <ref role="37wK5l" to="hm5v:7IUya7cfM4j" resolve="TableActions.InsertRowAction" />
+                <ref role="37wK5l" to="hm5v:63uETA6pMka" resolve="TableActions.InsertRowAction" />
                 <node concept="2OqwBi" id="7IUya7cjqnc" role="37wK5m">
                   <node concept="2WthIp" id="7IUya7cjqnd" role="2Oq$k0" />
                   <node concept="1DTwFV" id="7IUya7cjqne" role="2OqNvi">
@@ -840,6 +866,9 @@
                   </node>
                 </node>
                 <node concept="3clFbT" id="7IUya7cjqnf" role="37wK5m" />
+                <node concept="3clFbT" id="63uETA6sNgS" role="37wK5m">
+                  <property role="3clFbU" value="true" />
+                </node>
               </node>
             </node>
             <node concept="liA8E" id="7IUya7cjqng" role="2OqNvi">
@@ -872,7 +901,7 @@
             <node concept="2ShNRf" id="7IUya7cjqns" role="2Oq$k0">
               <node concept="1pGfFk" id="7IUya7cjqnt" role="2ShVmc">
                 <property role="373rjd" value="true" />
-                <ref role="37wK5l" to="hm5v:7IUya7cfM4j" resolve="TableActions.InsertRowAction" />
+                <ref role="37wK5l" to="hm5v:63uETA6pMka" resolve="TableActions.InsertRowAction" />
                 <node concept="2OqwBi" id="7IUya7cjqnu" role="37wK5m">
                   <node concept="2WthIp" id="7IUya7cjqnv" role="2Oq$k0" />
                   <node concept="1DTwFV" id="7IUya7cjqnw" role="2OqNvi">
@@ -880,6 +909,9 @@
                   </node>
                 </node>
                 <node concept="3clFbT" id="7IUya7cjqnx" role="37wK5m" />
+                <node concept="3clFbT" id="63uETA6sN7o" role="37wK5m">
+                  <property role="3clFbU" value="true" />
+                </node>
               </node>
             </node>
             <node concept="liA8E" id="7IUya7cjqny" role="2OqNvi">
@@ -911,7 +943,7 @@
             <node concept="2ShNRf" id="6R0q0mZqoFx" role="2Oq$k0">
               <node concept="1pGfFk" id="6R0q0mZqoFy" role="2ShVmc">
                 <property role="373rjd" value="true" />
-                <ref role="37wK5l" to="hm5v:6R0q0mZq1YX" resolve="TableActions.InsertColumnAction" />
+                <ref role="37wK5l" to="hm5v:63uETA6pydb" resolve="TableActions.InsertColumnAction" />
                 <node concept="2OqwBi" id="6R0q0mZqoFz" role="37wK5m">
                   <node concept="2WthIp" id="6R0q0mZqoF$" role="2Oq$k0" />
                   <node concept="1DTwFV" id="6R0q0mZqoF_" role="2OqNvi">
@@ -919,6 +951,9 @@
                   </node>
                 </node>
                 <node concept="3clFbT" id="6R0q0mZqoFA" role="37wK5m" />
+                <node concept="3clFbT" id="63uETA6sLBG" role="37wK5m">
+                  <property role="3clFbU" value="true" />
+                </node>
               </node>
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@@ -951,7 +986,7 @@
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               <node concept="1pGfFk" id="6R0q0mZqnWh" role="2ShVmc">
                 <property role="373rjd" value="true" />
-                <ref role="37wK5l" to="hm5v:6R0q0mZq1YX" resolve="TableActions.InsertColumnAction" />
+                <ref role="37wK5l" to="hm5v:63uETA6pydb" resolve="TableActions.InsertColumnAction" />
                 <node concept="2OqwBi" id="6R0q0mZqnWi" role="37wK5m">
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                   <node concept="1DTwFV" id="6R0q0mZqnWk" role="2OqNvi">
@@ -959,6 +994,9 @@
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                 </node>
                 <node concept="3clFbT" id="6R0q0mZqnWl" role="37wK5m" />
+                <node concept="3clFbT" id="63uETA6sLyA" role="37wK5m">
+                  <property role="3clFbU" value="true" />
+                </node>
               </node>
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             <node concept="liA8E" id="6R0q0mZqnWm" role="2OqNvi">
@@ -990,7 +1028,7 @@
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               <node concept="1pGfFk" id="6R0q0mZqnw5" role="2ShVmc">
                 <property role="373rjd" value="true" />
-                <ref role="37wK5l" to="hm5v:6R0q0mZq1YX" resolve="TableActions.InsertColumnAction" />
+                <ref role="37wK5l" to="hm5v:63uETA6pydb" resolve="TableActions.InsertColumnAction" />
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                   <node concept="1DTwFV" id="6R0q0mZqnw8" role="2OqNvi">
@@ -1000,6 +1038,9 @@
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                   <property role="3clFbU" value="true" />
                 </node>
+                <node concept="3clFbT" id="63uETA6sMsf" role="37wK5m">
+                  <property role="3clFbU" value="true" />
+                </node>
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@@ -1032,7 +1073,7 @@
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                 <property role="373rjd" value="true" />
-                <ref role="37wK5l" to="hm5v:6R0q0mZq1YX" resolve="TableActions.InsertColumnAction" />
+                <ref role="37wK5l" to="hm5v:63uETA6pydb" resolve="TableActions.InsertColumnAction" />
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@@ -1042,6 +1083,9 @@
                 <node concept="3clFbT" id="6R0q0mZqnbN" role="37wK5m">
                   <property role="3clFbU" value="true" />
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+                <node concept="3clFbT" id="63uETA6sMiL" role="37wK5m">
+                  <property role="3clFbU" value="true" />
+                </node>
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@@ -1073,13 +1117,16 @@
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               <node concept="1pGfFk" id="6R0q0mZS8fc" role="2ShVmc">
                 <property role="373rjd" value="true" />
-                <ref role="37wK5l" to="hm5v:6R0q0mZRHmo" resolve="TableActions.DeleteColumnAction" />
+                <ref role="37wK5l" to="hm5v:63uETA6q$_u" resolve="TableActions.DeleteColumnAction" />
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                     <ref role="2WH_rO" node="6R0q0mZQKWw" resolve="cell" />
                   </node>
                 </node>
+                <node concept="3clFbT" id="63uETA6s2Y7" role="37wK5m">
+                  <property role="3clFbU" value="true" />
+                </node>
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@@ -1112,13 +1159,16 @@
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                 <property role="373rjd" value="true" />
-                <ref role="37wK5l" to="hm5v:6R0q0mZRHmo" resolve="TableActions.DeleteColumnAction" />
+                <ref role="37wK5l" to="hm5v:63uETA6q$_u" resolve="TableActions.DeleteColumnAction" />
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                     <ref role="2WH_rO" node="6R0q0mZQKWw" resolve="cell" />
                   </node>
                 </node>
+                <node concept="3clFbT" id="63uETA6s2Tf" role="37wK5m">
+                  <property role="3clFbU" value="true" />
+                </node>
               </node>
             </node>
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diff --git a/code/tables/solutions/test.de.slisson.mps.tables/models/test/de/slisson/mps/tables@tests.mps b/code/tables/solutions/test.de.slisson.mps.tables/models/test/de/slisson/mps/tables@tests.mps
index 219a1d422..26e19ad50 100644
--- a/code/tables/solutions/test.de.slisson.mps.tables/models/test/de/slisson/mps/tables@tests.mps
+++ b/code/tables/solutions/test.de.slisson.mps.tables/models/test/de/slisson/mps/tables@tests.mps
@@ -368,7 +368,7 @@
                 <node concept="liA8E" id="651tS80xwp$" role="2OqNvi">
                   <ref role="37wK5l" to="6dpw:4UkcdCtMnDB" resolve="getElement" />
                   <node concept="3cmrfG" id="651tS80xwSO" role="37wK5m">
-                    <property role="3cmrfH" value="1" />
+                    <property role="3cmrfH" value="2" />
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                   <node concept="3cmrfG" id="651tS80xyfr" role="37wK5m">
                     <property role="3cmrfH" value="2" />
@@ -435,12 +435,12 @@
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-        <node concept="2YIFZM" id="x3GzfZajHm" role="3clFbG">
+      <node concept="3clFbF" id="51mbhuBmLhX" role="3cqZAp">
+        <node concept="2YIFZM" id="51mbhuBmLDH" role="3clFbG">
           <ref role="37wK5l" to="3a50:~ThreadUtils.runInUIThreadAndWait(java.lang.Runnable)" resolve="runInUIThreadAndWait" />
           <ref role="1Pybhc" to="3a50:~ThreadUtils" resolve="ThreadUtils" />
-          <node concept="1bVj0M" id="x3GzfZajLb" role="37wK5m">
-            <node concept="3clFbS" id="x3GzfZajLc" role="1bW5cS">
+          <node concept="1bVj0M" id="51mbhuBmLIx" role="37wK5m">
+            <node concept="3clFbS" id="51mbhuBmLIy" role="1bW5cS">
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@@ -531,7 +531,7 @@
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                   <ref role="37wK5l" to="6dpw:4UkcdCtMnDB" resolve="getElement" />
                   <node concept="3cmrfG" id="651tS80xYVu" role="37wK5m">
-                    <property role="3cmrfH" value="1" />
+                    <property role="3cmrfH" value="2" />
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                   <node concept="3cmrfG" id="651tS80xYVv" role="37wK5m">
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@@ -758,12 +758,12 @@
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-        <node concept="2YIFZM" id="x3GzfZamtP" role="3clFbG">
+      <node concept="3clFbF" id="51mbhuBm$_m" role="3cqZAp">
+        <node concept="2YIFZM" id="51mbhuBm$QS" role="3clFbG">
           <ref role="37wK5l" to="3a50:~ThreadUtils.runInUIThreadAndWait(java.lang.Runnable)" resolve="runInUIThreadAndWait" />
           <ref role="1Pybhc" to="3a50:~ThreadUtils" resolve="ThreadUtils" />
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-            <node concept="3clFbS" id="x3GzfZamw$" role="1bW5cS">
+          <node concept="1bVj0M" id="51mbhuBm$Yh" role="37wK5m">
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@@ -1045,23 +1045,23 @@
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                     <ref role="3cqZAo" node="4XQ7xxoWGud" resolve="selectionManager" />
                   </node>
-                  <node concept="liA8E" id="4XQ7xxoWGul" role="2OqNvi">
+                  <node concept="liA8E" id="51mbhuBmDv1" role="2OqNvi">
                     <ref role="37wK5l" to="lwvz:~SelectionManager.setSelection(jetbrains.mps.openapi.editor.cells.EditorCell_Label,int)" resolve="setSelection" />
-                    <node concept="37vLTw" id="4XQ7xxoWGum" role="37wK5m">
+                    <node concept="37vLTw" id="51mbhuBmDv2" role="37wK5m">
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-                    <node concept="3cmrfG" id="4XQ7xxoWGun" role="37wK5m">
+                    <node concept="3cmrfG" id="51mbhuBmDv3" role="37wK5m">
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@@ -1535,12 +1535,12 @@
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+      <node concept="3clFbF" id="51mbhuBmNr4" role="3cqZAp">
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+          <node concept="1bVj0M" id="51mbhuBmNGL" role="37wK5m">
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                   <node concept="37vLTw" id="6_jcnh_qxxM" role="2Oq$k0">
@@ -1829,12 +1829,12 @@
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