I made an app that let's control *all* the parameters of your software synth with just 4 knobs on your MIDI Controller

[sl23]

I've just thought, I found an app called Joy2Key, which allows a game controller to use mouse operations. So I mapped the analogue stick up and down to the scroll wheel.

It's far from ideal, but it works. Is there any chance you could add this to P-CC? That would then eliminate the Absolute/Relative knob mode issue, but it may still require work to get Relative knob mode to work,seeing as manufacturers have there own way of doing this it seems. What do you think?