I can't see how you could do this to be honest.
The Instant Access switches send MIDI CC messages and Factors see algorithm changes as Program Changes.
You can change the algorithms by turning the rotary encoder but that does not change any parameters associated with it such as tempo, Q filters etc so I don't see how practical it would be even if it did it.
Not tried this specifically, but can't see how it would work as I have programmed the TimeFactor, PitchFactor and Space with MIDI and they all work in the same way.
Not a restriction of the Ground Control Pro IMHO, just the way the factors work.
