Comment by Lio

Yeah that's a much better use case. Now you mention it I could see it being useful for soft synths, mixing, arranging, effects, etc.

I don't think I'd every want to "play" on it except as a last resort but it could definitely be handy for other virtual interfaces.

Imagine a knob per function synth or a modular setup being able to go straight the control in question would be useful.