Given the elegance, and power of the Helpers created via the UI for other groups, it would be of great use to add the mentioned domains to the grouped options.
cut is short, please add these 3 domains to the options for UI Helpers
the grouped control of booleans would be an extra powerful one given the fact we could then very easily control grouped entities from within the UI.
the person and device_tracker groups would allow for single glance control on these grouped entities (think family home, drives online etc etc) and build alerts for those.
lastly, it would allow us to delete those yaml groups from the config 
thanks for considering.