If you want to turn the effects on or off with a foot pedal, it's another assignment of the pedal. You would have to assign a second pedal to TALK ON/OFF. This is done is easily done by pressing the DIRECT ACCESS button then stepping on the foot pedal and scrolling down to talk. Save the information to pedal setting on a registration. If you're running out of pedals, which can be easy to do, merely assign the same information to a couple special registrations, one for ON and another for OFF.

Good Luck,

Gary