Philips Hue: groups with entity_id in Attributes

Currently Hue “Rooms” have an attribute listing all the lights in that room, but these aren’t really usable in Home Assistant as we’re getting the “Friendly Names” instead of the entity_id, and as far as I know you can’t lookup the entity_id from the friendly name (it doesn’t help they’re not guaranteed to be unique). It would be cool if we could get a list of the entities associated with this “group”.

What we currently get:

What I’d like: