@Override
  protected void addToolbarButtons(ToolbarDecorator toolbarDecorator) {
    toolbarDecorator.setAddAction(new AnActionButtonRunnable() {
      @Override
      public void run(AnActionButton button) {
        final VirtualFile[] added = doAddItems();
        if (added.length > 0) {
          setModified(true);
        }
        requestDefaultFocus();
        setSelectedRoots(added);
      }
    });

    super.addToolbarButtons(toolbarDecorator);
  }
@Override
  protected void addToolbarButtons(ToolbarDecorator toolbarDecorator)