Yamaha AW2816 Owner's Manual page 312

AUX5/EFF1, AUX6/EFF2 screens
Additional functions in the Eff Edit
page
In the Eff Edit page you can press the [SHIFT] key to
assign the following function to the [F1] key.
• [F1] (BYPASS ON/OFF) key
Switches effect bypass on/off. This is the same
function as the button in the BYPASS area (2).
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Reference section