PlayableChords  - "Shape" CV In:  Does it work?

I'd like change the shape with an LFO or sequencer.. but it doesn't work.  I can sometimes get it switch between two chords (Maj and Minor) if I apply 10 volts  (-10 v didn't work either)   but i'd like to change to any of the available chord shapes from  the CV Input.   Am I missing something?  