Z3TA+ Poly Aftertouch not working

Greetings,
 
I just purchased Z3TA+ thinking that it supports poly aftertouch but I cannot get it to work. It looks like Z3TA+ supports poly aftertouch because it shows "Poly Aft" in the list of matrix controllers. My Z3TA+ responds to channel aftertouch (ChanAft) but does not respond whatsoever to poly aftertouch. For trouble-shooting, I figure that any patch that responds to channel aftertouch (ChanAft) should also respond (per key) if I change the matrix controller to PolyAft.
 
My setup consist of the CME XKey37 which is capable of generating either channel or poly aftertouch. The Xkey is connected to an iPad Mini 2 via USB. I have over 10 ios synth apps that respond flawlessly to poly aftertouch.
 
At the very least, I want to know, does Z3TA+ really respond to poly aftertouch? If so, how do I get it to work? If Z3TA+ does not support poly aftertouch then please finish adding this feature.
 
Thank you for any help,
Bob
 
Sorry if I may have double posted, just trying to figure it out.