Add copy/paste to the map editor.

mods/cnc/chrome/editor.yaml

@@ -362,7 +362,7 @@ Container@EDITOR_WORLD_ROOT:
 					Text: Actors
 					Font: Bold
 		Button@GRID_BUTTON:
-			X: WINDOW_RIGHT - 420
+			X: WINDOW_RIGHT - 500
 			Y: 5
 			Width: 100
 			Height: 25
@@ -373,7 +373,7 @@ Container@EDITOR_WORLD_ROOT:
 			TooltipText: Toggle the terrain grid
 			TooltipContainer: TOOLTIP_CONTAINER
 		Label@ZOOM_LABEL:
-			X: WINDOW_RIGHT - 500 - 55
+			X: WINDOW_RIGHT - 580 - 55
 			Y: 5
 			Width: 50
 			Height: 25
@@ -382,11 +382,17 @@ Container@EDITOR_WORLD_ROOT:
 			Font: Bold
 			Contrast: true
 		DropDownButton@ZOOM_BUTTON:
-			X: WINDOW_RIGHT - 500
+			X: WINDOW_RIGHT - 580
 			Y: 5
 			Width: 70
 			Height: 25
 			Font: Bold
+		Button@COPYPASTE_BUTTON:
+			X: WINDOW_RIGHT-390
+			Y: 5
+			Width: 96
+			Height: 25
+			Text: Copy/Paste
 		Label@COORDINATE_LABEL:
 			X: 10
 			Width: 50

mods/cnc/rules/world.yaml

@@ -154,4 +154,5 @@ EditorWorld:
 	Inherits: ^BaseWorld
 	EditorActorLayer:
 	EditorResourceLayer:
+	EditorSelectionLayer:
 

mods/cnc/sequences/misc.yaml

@@ -240,6 +240,12 @@ overlay:
 	target-invalid:
 		Start: 1
 
+editor-overlay:
+	copy: overlay
+		Start: 0
+	paste: overlay
+		Start: 1
+
 poweroff:
 	offline:
 		Length: *