Yamaha MMP1 Setup Manual page 78

Choose "Talkback Destination" as Function, and "1" (#1 out of 8 Talkback Destinations) as
Parameter respectively.
[User Assignable – Function/Parameter]
Considering the color and position of each button, configure other User Assignable buttons.
When configured, check those buttons in the Main window.
[Settings – User Assignable]
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