public override void DoUndo()
 {
     if (!RedoGenerated)
     {
         HistoryDecalsChange.GenerateRedo(Undo.Current.Prefabs.DecalsChange).Register();
     }
     RedoGenerated = true;
     DoRedo();
 }
 public void RegisterDecalsOrderChange()
 {
     HistoryDecalsChange.GenerateUndo(Prefabs.DecalsChange).Register();
 }