Are you asking on how to turn off all the effects at once? Or ?

Bank Up/Down – These footswitches select banks 1-31. To scroll through banks quickly, hold a footswitch down until you get to the bank you want. Press both footswitches together to choose modes as we’re about to describe...

Footswitches A-D – There are two footswitch modes; Channel Memory and On/Off. To toggle between modes press both bank up and down simultaneously.

• Channel Memory Mode: In this mode Bank Up and Bank Down selects a bank while Footswitches A-D select a Channel Memory within that bank. In this mode, the footswitch lights will illuminate Red when the footswitch is pressed.

• On/Off Mode: This mode lets you to turn effects or the Amp Model on and off with your feet. Footswitches A-D now turn on and off the Amp Model, Solo boost, FX, and Delay respectively. In this mode, the footswitch lights will illuminate Green to indicate the On state of each function.

On/Off Functions Light – Lights when On/Off mode is active.