Reassigning the Rotary Knob

It would be very useful to be able to reassign the rotary knob on the fly.  When mixing (i.e. not in browse mode) I rarely, almost never, use the zoom function of the rotary or use the grid move function.  These are both useful but rarely used.  It would be so good if I could have a 3rd option to reassign this to beat jumping.  The touch screen while useful is not as intuitive as the knob.  Ideally I would set the beat jump amount via the touch screen but use the knob to make the jump.  Traktor has this, I really think the top of the range DJ decks should too!