Can an Expression pedal control the mix level of a harmonizer effects?

I have a kemper profiler rack 600watt version using it with a stock behringer footcontroller.
1. Is it possible to control the Mix level of any harmonizer effects in the pre or post amp section? I'm looking to slowly mix in and mix out the effect within a rig/ preset.

I would like to have expression pedal A" on my berhinger to soley control a harmonizer effect mix level from 0-127.
I want to engage and disengage the harmonizer effects by using expression pedal A" in one of my solo rig/preset.

I was wondering if any one else has some thoughts or experience with kemper and berhinger foot controller. Thank you.

newest chip for the berhinger? Which would that be?
Thank you kindly Golf and Kulle!
I looked into setting up morphing and watched the videos, I was afraid I might screw up the other expression pedal settings for my other rigs. I will search for the other videos and study them. Thank you.