public static void CancelMultiSelectionNodeRelocation(iCS_IStorage iStorage)
 {
     // Animate node back to its original position.
     iStorage.AnimateGraph(null,
                           _ => {
         iStorage.CancelMultiSelectionNodeRelocation();
         iStorage.ForcedRelayoutOfTree();
     }
                           );
     CancelTransaction(iStorage);
 }