docs: public static void installOn(
          CmsSitemapController controller,
          CmsTreeItem treeItem,
          CmsUUID entryId,
          String sitePath,
          boolean contextmenu) {
  
          CmsSitemapHoverbar hoverbar = new CmsSitemapHoverbar(controller, entryId, sitePath, contextmenu);
          installHoverbar(hoverbar, treeItem.getListItemWidget());
      }