private MPlaceholder createSharedPart(MPart sharedPart) {
   // Create and return a reference to the shared part
   MPlaceholder sharedPartRef = modelService.createModelElement(MPlaceholder.class);
   sharedPartRef.setElementId(sharedPart.getElementId());
   sharedPartRef.setRef(sharedPart);
   return sharedPartRef;
 }