@Override
    public void actionPerformed(@NotNull AnActionEvent e) {
      Content[] contents = myManager.getContents();
      for (Content content : contents) {
        if (myContent != content && content.isCloseable()) {
          myManager.removeContent(content, true);
        }
      }
      myManager.setSelectedContent(myContent);
    }
@Override
    public void actionPerformed(@NotNull AnActionEvent e)