private void expandNextOptionButton() {
    if (myCurrentOptionsButtonIndex >= 0) {
      optionButtons.get(myCurrentOptionsButtonIndex).closePopup();
    }
    myCurrentOptionsButtonIndex = getEnabledIndexCyclic(optionButtons, myCurrentOptionsButtonIndex, true).orElse(-1);
    if (myCurrentOptionsButtonIndex >= 0) {
      optionButtons.get(myCurrentOptionsButtonIndex).showPopup(null, true);
    }
  }
private void expandNextOptionButton()