I actually got an expression pedal to use for wah wah sound from the XTlive, now the problem is that ones you tricker the wah wah sound, sounds different (as it should). But my problem is that I don't want to have a different bank on the pedalboard for a wah wah sound, I need to use a wah wah sound on whatever sound (bank) I need to. Also, there's no control from the pedal to actually engage on & off the wah wah sound. Ones you turn it on, to use it on a sound (bank) its just on.
Thus, I am trying to contact a company called Mission Engineering that they make this product Helix Rack Expression Pedal w/Toe Switch hopefully it works for the PODXTLIVE so I can have the switch on/off and do the job. I'll write back when I figure this out. Hopefully, this thread helps someone too.