public void SaveLayout(Stream stream) => MesLayoutUtility.SaveLayout(Manager, stream);
 public void LoadLayout(
     Stream stream,
     Action <IMesTool> addToolCallback,
     Action <IMesDocument> addDocumentCallback,
     Dictionary <String, IMesLayoutItem> itemsState) =>
 MesLayoutUtility.LoadLayout(Manager, stream, addDocumentCallback, addToolCallback, itemsState);