Make # of config slots changeable (max of 80)

command: /c remote.call("at","setConfigSize", size1, size2)

control.lua

@@ -1,7 +1,10 @@
 require "defines"
 require "util"
 
-MAX_CONFIG_SIZE = 10
+MAX_CONFIG_SIZES = {
+  ["character-logistic-trash-slots-1"] = 10,
+  ["character-logistic-trash-slots-2"] = 30
+}
 MAX_STORAGE_SIZE = 6
 
 require "gui"
@@ -52,7 +55,11 @@ local function init_force(force)
     init_global()
   end
   if not global.configSize[force.name] then
-    global.configSize[force.name] = force.technologies["character-logistic-trash-slots-2"].researched and 30 or MAX_CONFIG_SIZE
+    if force.technologies["character-logistic-trash-slots-2"].researched then
+      global.configSize[force.name] = MAX_CONFIG_SIZES["character-logistic-trash-slots-2"]
+    else
+     global.configSize[force.name] = MAX_CONFIG_SIZES["character-logistic-trash-slots-1"]
+    end
   end
 end
 
@@ -225,9 +232,10 @@ function on_tick(event)
             end
           end
         end
+        local configSize = global.configSize[player.force.name]
         local already_trashed = {}
         for i, item in pairs(global.config[player.name]) do
-          if item and item.name ~= "" then
+          if item and item.name ~= "" and i <= configSize then
             already_trashed[item.name] = item.count
             local count = player.get_item_count(item.name)
             local requested = requests[item.name] and requests[item.name] or 0
@@ -470,7 +478,7 @@ script.on_event(defines.events.on_research_finished, function(event)
     return
   end
   if event.research.name == "character-logistic-trash-slots-2" then
-    global.configSize[event.research.force.name] = 30
+    global.configSize[event.research.force.name] = MAX_CONFIG_SIZES["character-logistic-trash-slots-2"]
   end
 end)
 
@@ -503,5 +511,27 @@ remote.add_interface("at",
       init_global()
       init_forces()
       init_players()
+    end,
+
+    setConfigSize = function(size1, size2)
+      local s1 = size1 and size1 or MAX_CONFIG_SIZES["character-logistic-trash-slots-1"]
+      local s2 = size2 and size2 or MAX_CONFIG_SIZES["character-logistic-trash-slots-2"]
+      if s1 > s2 then
+        s1, s2 = s2, s1
+      end
+      --check max size (to avoid gui hanging out of the game
+      s1 = s1 > 80 and 80 or s1
+      s2 = s2 > 80 and 80 or s2
+      --update all forces
+      if not global.configSize then
+        init_global()
+      end
+      for i, force in pairs(game.forces) do
+        if force.technologies["character-logistic-trash-slots-2"].researched then
+          global.configSize[force.name] = s2
+        else
+          global.configSize[force.name] = s1
+        end
+      end       
     end
   })

gui.lua

@@ -95,10 +95,10 @@ function gui_open_frame(player)
   -- Temporary config lives as long as the frame is open, so it has to be created
   -- every time the frame is opened.
   global["config-tmp"][player.name] = {}
-
+  local configSize = global.configSize[player.force.name] 
   -- We need to copy all items from normal config to temporary config.
   local i = 0
-  for i = 1, global.configSize[player.force.name] do
+  for i = 1, configSize  do
     if i > #global["config"][player.name] then
       global["config-tmp"][player.name][i] = { name = "", count = 0 }
     else
@@ -124,60 +124,34 @@ function gui_open_frame(player)
     name = "auto-trash-error-label"
   }
   error_label.style.minimal_width = 200
-  local colspan = global.configSize[player.force.name] > 10 and 9 or 6
+  local colspan = configSize > 10 and 9 or 6
+  colspan = configSize > 54 and 12 or colspan
   local ruleset_grid = frame.add{
     type = "table",
     colspan = colspan,
     name = "auto-trash-ruleset-grid"
   }
-  ruleset_grid.add{
-    type = "label",
-    name = "auto-trash-grid-header-1",
-    caption = {"auto-trash-config-header-1"}
-  }
-  ruleset_grid.add{
-    type = "label",
-    name = "auto-trash-grid-header-2",
-    caption = {"auto-trash-config-header-2"}
-  }
-
-  ruleset_grid.add{
-    type = "label",
-    caption = ""
-  }
-
-  ruleset_grid.add{
-    type = "label",
-    name = "auto-trash-grid-header-3",
-    caption = {"auto-trash-config-header-1"}
-  }
-  ruleset_grid.add{
-    type = "label",
-    name = "auto-trash-grid-header-4",
-    caption = {"auto-trash-config-header-2"}
-  }
-  ruleset_grid.add{
-    type = "label",
-    caption = ""
-  }
-  if colspan == 9 then
+  local j = 1
+  for i=1,colspan/3 do
     ruleset_grid.add{
       type = "label",
-      name = "auto-trash-grid-header-5",
+      name = "auto-trash-grid-header-"..j,
       caption = {"auto-trash-config-header-1"}
     }
+    j = j+1
     ruleset_grid.add{
       type = "label",
-      name = "auto-trash-grid-header-6",
+      name = "auto-trash-grid-header-"..j,
       caption = {"auto-trash-config-header-2"}
     }
+    j=j+1
     ruleset_grid.add{
       type = "label",
       caption = ""
     }
   end
 
-  for i = 1, global.configSize[player.force.name] do
+  for i = 1, configSize do
     local style = global["config-tmp"][player.name][i].name or "style"
     style = style == "" and "style" or style
     ruleset_grid.add{