Canon EOS 7D Mark II (G) Instruction Manual page 267

External Flash Function Settings
The screen display and setting options will vary depending on the
external Speedlite model, current flash mode, Speedlite's Custom
Function settings, etc.
To see which functions your Speedlite (sold separately) provides, refer
to the Speedlite's instruction manual.
Sample display
Flash mode
Shutter
synchronization
Flash mode
You can select the flash mode to suit your desired flash shooting.
Wireless functions/
Flash ratio control
[E-TTL II flash metering] is the standard
mode of EX-series Speedlites for
automatic flash shooting.
[Manual flash] is for setting the
Speedlite's [Flash output level]
yourself.
Regarding other flash modes, refer to the
instruction manual of a Speedlite
compatible with the functions.
3 Setting the FlashN
Flash zoom
(Flash coverage)
Flash exposure
bracketing
Flash exposure
compensation
267