@Override
    public void actionPerformed(ActionEvent e) {
      KeyboardFocusManager kfm = KeyboardFocusManager.getCurrentKeyboardFocusManager();
      Container container = kfm.getCurrentFocusCycleRoot();
      IdeFocusManager.getGlobalInstance().doWhenFocusSettlesDown(() -> {
        FocusTraversalPolicy policy = container.getFocusTraversalPolicy();
        if (null == policy) policy = kfm.getDefaultFocusTraversalPolicy();
        Component next =
          moveDown ? policy.getComponentAfter(container, PaletteGroupHeader.this) : policy.getComponentBefore(container, PaletteGroupHeader.this);
        if (next instanceof PaletteComponentList list) {
          if (list.getModel().getSize() != 0) {
            list.takeFocusFrom(PaletteGroupHeader.this, list == myComponentList ? 0 : -1);
            return;
          }
          else {
            next = moveDown ? policy.getComponentAfter(container, next) : policy.getComponentBefore(container, next);
          }
        }
        if (next instanceof PaletteGroupHeader) {

          IdeFocusManager.getGlobalInstance().requestFocus(next, true);
        }
      });
    }
@Override
    public void actionPerformed(ActionEvent e)