Midi CC from cubase to controller?

It’s clunky because you can only blindly echo midi data back to the controller to get feedback data displayed on the bezels - and you have to create the sends yourself to do it, yes.

To have an intelligent feedback mechanism from the host would appear to require support on the host side - and so would likely require a dedicated control surface driver - which is where I was going with this topic. That has to come from Behringer.