Multizone Amp with Live Feedback

Do any of the multi zone amps supported(RS-232) allow for live feedback of the volume? Not a big deal, but it would be nice If the volume can be displayed on the iPads.

Basically every receiver we support via RS232 has volume feedback on multiple zones. There are a few rare exceptions. These details are in the compatibility list:

Thank you.

I understand about the receivers, but how about dedicated multi zone amps? Like HTD or Russound?

I would love to know this for HTD too

If not supported in the database, can we add the feedback ourselves?