Assign MIDI to change patches/instruments

Hi all,

I figured out how to assign different MIDI controls to the several parameters available in PTQ.

My specific questions is, how can I change patches within an istrument with a rotatory (infinite) knob, like the dial wheel in some workstations.

I can assign 2 buttons for that purpose, nex/previous patch but I wonder whether it's possible to do it like explained above.

Thanks in advance.
David