Canon EOS-1D X Mark III Advanced User's Manual page 780

Resetting the Custom Quick Control Screen or Clearing
All Items
To restore the default Custom Quick Control screen layout, select [Revert layout to default]
in step 2 ( ).
To remove all items from the layout (so that the screen is blank except for the bottom row),
select [Clear all items].
Available items and display sizes for the screen layout
Item and Size
Shooting mode
Shutter speed
Aperture
ISO speed
Exposure comp./AEB setting
Flash exposure compensation
Picture Style
White balance
WB Shift/Bkt.
Auto Lighting Optimizer
Custom Controls
AF operation
AF point selection
Metering mode
Drive mode
Rec function/card selection
Date/Time/Zone
External Speedlite control
Highlight tone priority
Viewfinder grid
Sensor cleaning
Exposure level
GPS settings
1×1 1×2 1×3
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780
(Vertical × horizontal cells)
1×5 2×2 2×3
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3×1 4×1
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