Remap the headphone volume to another knob

Is there a way to "move/remap" the headphone volume from the front of controller to another one? Maybe use the both monitor knob. 8 really like the all positions of knobs but the headphone on the front is something I don't like at all. Só I wish I could change this option and use the both monitor to increase or decrease the headphone volume. Is there a way? Tks a lot