private WizardPopup createListPopupStep(WizardPopup parent, PopupStep<?> step, Object parentValue) {
    if (step instanceof ListPopupStep) {
      return new BranchActionGroupPopup(parent, (ListPopupStep<?>)step, parentValue);
    }
    return super.createPopup(parent, step, parentValue);
  }
private WizardPopup createListPopupStep(WizardPopup parent, PopupStep<?> step, Object parentValue)