MPowerSynth: modwheel and aftertouch (keyboard controllers)

[mevla]

I searched trough the user guide for 'modulation', 'modwheel', 'wheel' and 'aftertouch' and did not get anything - or so it seemed - related to how to assign those two keyboard controllers or for that matter, any knob, button and slider found on a keyboard controller. Very specifically I would like to assign aftertouch to the Harmonics Generator -> Generator -> Slope parameter. Is this possible ?

[jmg8]

1. Open MIDI window (bottom right)
2. Click learn and then move the shape parameter. Then turn learn off.
3. Select "Special Aftertouch" as the controler.
4. Make sure that you tick the little box in the list (to the left)