So I have a Korg XVP20 that I've been trying to setup with my Mastermind PBC and strymons to work as a combo volume/expression pedal controller. However, I am realizing I am going to have to put it into a loop in order to use it as such and not be attentuating my volume every time I want to use it for expression functions. However, I also do not want it to be controlling the expression on my strymons every time I use it for volume. I'm sure I am missing something simple here, but is it possible to turn off expression function for individual patches?