I’m not 100% sure, but if I recall correctly - I’ve heard something like this in the “state of the union”, so it might not be the “feature request” - maybe it’s just a question about ETA of this feature 
anyway…
a person can use quite a few devices, that can be tracked: smartwatch, phone, car, bluetooth tracker etc. all of them can be tracked within zones. if I want to gather all those info and use it in the dashboard or conditions, I can make a group like:
group.this_is_me:
entity_picture: yyyy
entities:
- device_tracker.google_maps_<some_numbers>
- device_tracker.my_phone
- device_tracker.my_laptop
but the group can only get the values like “home” or “not_home”, and the group can’t be viewed on the map, also even if the group’s member entities are in some zone, the group’s state is still “home” or “not_home”.
so maybe it would be a cool thing to make a new entity - something like a group, but with the ability to “get the latest location” from it’s entities and to be viewed on map?
configuration would be similar to group:
person.this_is_me:
entity_picture: yyyy
entities:
- device_tracker.google_maps_<some_numbers>
- device_tracker.my_phone
- device_tracker.my_laptop
but the real difference would be in the handling of those.
device_tracker then should have additional configuration toggle/switch “show_on_map” - so we can exclude them, and then person.this_is_me would have the same “show_on_map” setting so we could see the person entity on the map, but hide all the “duplicates” [meaning: person’s device_trackers] etc.
I really hope you know what I mean 
