Canon EOS-1D X Mark II DSLR Camera (Body Only) - Manual (Page 495)

495
Menu Settings
2 : AF2 (Purple)
Page
2 : AF3 (Purple)
AI Servo 1st image
priority
Release priority / Equal priority / Focus priority 122
AI Servo 2nd image
priority Shooting speed priority: -2/-1 / Equal priority: 0
/ Focus priority: +1/+2
123
Lens electronic MF
Enable after One-Shot AF / Disable after One-
Shot AF / Disable in AF mode
124
AF-assist beam firing Enable / Disable / IR AF assist beam only 125
One-Shot AF release
priority
Release priority / Focus priority 126