Groups in HA and Deconz (streamlining)

I try to minimize the use of HA groups, and use real Zigbee group (deconz). Faster,better,…
But, what I see is that a HA group, contains the group members. Which means, starting from that group, you can find the members of that group.
A zigbee group (in my case, a “is_deconz_group=true”) only tells that it’s a group, not which members it contains.
It would be nice to streamline this.
If you look at the deconz groups, using REST, you can the the group members of a group.
So, I guess, while retrieving the data from the group, one can also add the members of the group…

This would be great yes