UNA has the automatic insertion of the meta-info from the fields to the header. Seems in your request it will require some customizations with the class from /inc/classes/BxDolMetatags.php https://github.com/unaio/una/blob/master/inc/classes/BxDolMetatags.php If you know PHP and MySQL you may review the work of this class and how it works with the apps via table `sys_objects_metatags` (see the examples from GitHub)