The control room volume can be remote controlled with the CMC-AI.
I am also not such a fan of horizontal sliding ribbons especially for que mixes sends and such - well everything really in fact. In previous versions you could click with the Alt key and it would give you a decent vertical fader (you can still see this in the inspector and the transport volume control - but I guess they’ll too be gone when they upgrade this part of the GUI).
Anyway, this tendency is part of the reason I’ve gone to using the CMC controllers.