Did you ever figure this out? I'm looking to replicate the same on a Pod Go. I currently use the momentary S Bend on my Boss PS-6.
As a backup (if I must), I'll use the expression pedal, but then my next obstacle is getting two settings/values out of one pitch shifter block. I need a +24 interval and a -12 interval. I'm trying to avoid snapshots to accomplish it, nor do I wish to waste two blocks on pitch shifters.
Thanks in advance.