Akai MPC TOUCH User Manual page 56

Selectors
Selectors show all available options. One of them is always selected.
The selected option is highlighted while the others are dark.
To select an option, tap it.
Buttons
Buttons usually have two states: selected and deselected (active or inactive,
respectively).
To select or deselect a button, do either of the following:
•
Tap it.
•
If it is outlined in red (and is not a mute button), use the Data Dial or –/+
buttons to switch it to its opposite state.
56