The C (Action) Button; Shooting: Choosing A Shooting Mode - Nikon 1 aw1 Reference Manual

The C (Action) Button

Some operations can be performed by keeping the C button
pressed and tilting the camera left or right.

Shooting: Choosing a Shooting Mode

While the view through the lens is displayed, you can choose the
shooting mode by pressing the C button, tilting the camera left
or right to highlight the desired mode, and releasing the button
to select the highlighted option.
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To exit without changing settings, tilt the camera forward or
back so that no option is highlighted when the C button is
released.
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