Using a synth knob as a fader

Cubase
,
1

Hi guys –
Anyhow ever use a synth knob as a fader? Perhaps it’s harder than I thought, because I can’t figure it out. I’d like to be able to assign, say, my Sub37’s big old filter knob to act as the controller for an automation lane. Possible? THanks!

2

Yes, if it sends MIDI

3

I’ve been able to assign midi cc to my knob as well, so yes!