I was wondering if it is possible to assign the rotary encoder of a fireface ucx to analog outputs 1/2 since these are connected to my monitors. I want to assign it in such a way that i don't need to push it or anything, just turn the knob and lower or raise the volume. I've checked the manual but couldn't directly find the answer... I've also played around with the assign function in the controlroom section of totalmix but it seems that the knob i hard-wired to the phones.