@Override
  protected void prependActions(@NotNull DefaultActionGroup actionGroup) {
    super.prependActions(actionGroup);
    actionGroup.add(new ChangeScopeAction() {
      @Override
      protected boolean isEnabled() {
        return !Comparing.strEqual(getCurrentViewType(), getSupertypesHierarchyType());
      }
    });
  }
@Override
  protected void prependActions(@NotNull DefaultActionGroup actionGroup)