@Override
          public void actionPerformed(final ActionEvent e) {
            if (!myDefaultBundleInitialized) {
              myDefaultBundleInitialized = true;
              Set<String> bundleNames = FormEditingUtil.collectUsedBundleNames(myEditor.getRootContainer());
              if (!bundleNames.isEmpty()) {
                myTfBundleName.setText(ArrayUtilRt.toStringArray(bundleNames)[0]);
              }
            }
            CardLayout cardLayout = (CardLayout) myCardHolder.getLayout();
            cardLayout.show(myCardHolder, CARD_BUNDLE);
          }
@Override
          public void actionPerformed(final ActionEvent e)