code: public void copyElement(final String id, final I_CmsSimpleCallback<CmsUUID> callback) {
  
          CmsRpcAction<CmsUUID> action = new CmsRpcAction<CmsUUID>() {
  
              @Override
              public void execute() {
  
                  start(200, false);
                  getContainerpageService().copyElement(
                      CmsCoreProvider.get().getStructureId(),
                      new CmsUUID(id),
                      getData().getLocale(),
                      this);
              }
  
              @Override
              protected void onResponse(CmsUUID result) {
  
                  stop(false);
                  callback.execute(result);
              }
  
          };
          action.execute();
      }
docs: Copies an element and asynchronously returns the structure id of the copy.<p>
  
  @param id the element id
  @param callback the callback for the result