Canon EOS 5D MARK III Instruction Manual page 10

Customizing the
Camera
You can customize various camera features to suit your
picture-taking preferences with Custom Functions.
Also, the current camera settings can be saved under
the Mode Dial's <_]>, <Jill>, and <r_> positions.
The features explained in this chapter can be set and
used in the following shooting modes: PITy/AM/M/
B.