Select newly added nodes on drag and drop in 2D viewport

editor/plugins/canvas_item_editor_plugin.cpp

@@ -5811,10 +5811,12 @@ bool CanvasItemEditorViewport::_create_instance(Node *parent, String &path, cons
 	instantiated_scene->set_scene_file_path(ProjectSettings::get_singleton()->localize_path(path));
 
 	EditorUndoRedoManager *undo_redo = EditorUndoRedoManager::get_singleton();
+	EditorSelection *editor_selection = EditorNode::get_singleton()->get_editor_selection();
 	undo_redo->add_do_method(parent, "add_child", instantiated_scene, true);
 	undo_redo->add_do_method(instantiated_scene, "set_owner", edited_scene);
 	undo_redo->add_do_reference(instantiated_scene);
 	undo_redo->add_undo_method(parent, "remove_child", instantiated_scene);
+	undo_redo->add_do_method(editor_selection, "add_node", instantiated_scene);
 
 	String new_name = parent->validate_child_name(instantiated_scene);
 	EditorDebuggerNode *ed = EditorDebuggerNode::get_singleton();
@@ -5853,6 +5855,8 @@ void CanvasItemEditorViewport::_perform_drop_data() {
 
 	EditorUndoRedoManager *undo_redo = EditorUndoRedoManager::get_singleton();
 	undo_redo->create_action_for_history(TTR("Create Node"), EditorNode::get_editor_data().get_current_edited_scene_history_id());
+	EditorSelection *editor_selection = EditorNode::get_singleton()->get_editor_selection();
+	undo_redo->add_do_method(editor_selection, "clear");
 
 	for (int i = 0; i < selected_files.size(); i++) {
 		String path = selected_files[i];
@@ -5879,6 +5883,7 @@ void CanvasItemEditorViewport::_perform_drop_data() {
 			if (texture != nullptr && texture.is_valid()) {
 				Node *child = Object::cast_to<Node>(ClassDB::instantiate(default_texture_node_type));
 				_create_nodes(target_node, child, path, drop_pos);
+				undo_redo->add_do_method(editor_selection, "add_node", child);
 			}
 		}
 	}