code: public void show() {
  
          addStyleName(I_CmsLayoutBundle.INSTANCE.attributeChoice().hovering());
          if (displayAbove()) {
              addStyleName(I_CmsLayoutBundle.INSTANCE.attributeChoice().displayAbove());
          } else {
              removeStyleName(I_CmsLayoutBundle.INSTANCE.attributeChoice().displayAbove());
          }
      }
docs: Shows the choice menu.<p>