Свой пункт меню в мобильном приложении Битрикс24

$eventManager = \Bitrix\Main\EventManager::getInstance();
$eventManager->addEventHandlerCompatible("mobile", "onMobileMenuStructureBuilt", "onMobileMenuStructureBuilt");

function onMobileMenuStructureBuilt( $menu, $component )
{
  return $menu;
}