In actual design work, tag nos. will be crucial in identification of equipment / instrument under study. I understand it can be defined in the Identification tag and made visible by App settings but the nomenclature of Show "User Names" is not very clear at first. Maybe it can be changed or explained in the How To guides/videos (comment : some video recordings / gif are very quick and hard to follow, e.g. "Making changes on the parent scenario" gif)