@Override
      public Object getData(@NotNull String dataId) {
        if (PlatformDataKeys.CONTENT_MANAGER.is(dataId)) {
          return myManager;
        }
        if (PlatformDataKeys.NONEMPTY_CONTENT_MANAGER.is(dataId) && myManager.getContentCount() > 1) {
          return myManager;
        }
        return null;
      }
@Override
      public Object getData(@NotNull String dataId)