Canon EOS REBEL T7i Instruction Manual page 397

C.Fn-13
You can assign a frequently-used function to <0>. When the camera
is ready to shoot, pressing the <0> button will display the respective
function setting screen.
0: Normal (disabled)
1: Image quality
The image quality setting screen will appear.
2: Flash exposure comp.
The flash exposure compensation setting screen will appear.
3: LCD monitor On/Off
You can turn on or off the LCD monitor.
4: Menu display
The menu screen will appear.
5: Expo comp (hold btn, turn S)
You can set the exposure compensation by turning the <6> dial
while holding down <0>. Useful when you want to set exposure
compensation in <a> manual exposure with ISO Auto set.
6: Flash function settings
The built-in flash or external flash function setting screen will
appear.
C.Fn-14
0: Display on
When you turn on the power, the Quick Control screen will appear
(p.59).
1: Previous display status
When you turn on the power, the camera will start with the LCD
monitor display in the state it was in when the power was last
turned off. Therefore, if you turn off the camera when the LCD
monitor is off, nothing will be displayed when you turn on the
camera again. This helps to save battery power. The menu
operations and image playback will be available as usual.
Assign SET button
LCD display when power ON
3 Custom Function Setting ItemsN
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