@Override
    public void actionPerformed(ActionEvent e) {
      PropertiesComponent propertiesComponent = PropertiesComponent.getInstance();
      FileChooserDescriptor descriptor = new FileChooserDescriptor(true, false, false, false, false, true)
        .withFileFilter(file -> Comparing.equal(file.getExtension(), "html", file.isCaseSensitive()));
      String value = propertiesComponent.getValue(LAST_OPENED_TIP_PATH);
      VirtualFile lastOpenedTip = value != null ? LocalFileSystem.getInstance().findFileByPath(value) : null;
      VirtualFile[] pathToSelect = lastOpenedTip != null ? new VirtualFile[]{lastOpenedTip} : VirtualFile.EMPTY_ARRAY;
      VirtualFile[] choose = FileChooserFactory.getInstance().createFileChooser(descriptor, null, myTipPanel).choose(null, pathToSelect);
      if (choose.length > 0) {
        ArrayList<TipAndTrickBean> tips = new ArrayList<>();
        for (VirtualFile file : choose) {
          TipAndTrickBean tip = new TipAndTrickBean();
          tip.fileName = file.getPath();
          tip.featureId = null;
          tips.add(tip);
          propertiesComponent.setValue(LAST_OPENED_TIP_PATH, file.getPath());
        }
        myTipPanel.setTips(TipsSortingResult.create(tips));
      }
    }
@Override
    public void actionPerformed(ActionEvent e)