Anderton

Rob[atSound-Rehab]
I assume some of it may be due to some locking functionality that I believe Craig also used to protect the FX chains he provided  ...

That's the case only with the CA-X amps, however you can write automation for all the controls. Non-CA-X amps should allow for right-click MIDI learn.

There is no MIDI Learn on this knob...   there is a learn, but it is only to map the knob to a parameter, not to the MIDI CC on your keyboard.

In playing with this I just noticed a really annoying bug. When you select "edit control" and assign a parameter to the knob, there is no way of reversing the assignment. Because when you select "none" in the destination menu, the OK button becomes greyed out. 
 
EDIT: then again, I'm stupid enough not to notice "remove control" in the menu. Still......