Canon EOS-1DX MARK II Settings Manual page 129

When assigning functions to buttons with Custom
Controls, the [<
at the bottom left of the setting screen. By pressing the
< > button at this time, it is possible to perform
detailed settings for the assign function.
With the EOS-1D X Mark II, [Switch only when btn is
held] and [Switch each time btn is pressed] detailed
settings have been added to [One-Shot
a n d [Switch to registered AF point] f u n c t i o n
assignments. For example, even when you want to use
[One-Shot AF] and [AI Servo AF] at about the same
ratio, the [Switch each time btn is pressed] detailed
setting is effective.
In addition, [Direction: AF point switching] and
[Direction: Zone AF frame switch] detailed settings are
possible for function assignment of [Direct AF point
selection] to the Quick Control Dial.
You can utilize the detailed settings to carry out
customization for even greater ease of use.
> detailed settings] item will display
129
AF Servo]