Canon EOS 1D Software Instruction Manual page 184

Personal Function Settings
[Other functions 1]
Changes the timer's time length (M-71)
Illuminates the LCD panel during bulb exposures (M-72)
[Other functions 2]
Sets the default settings when the CLEAR button is ON (M-72)
[Other functions 3]
Shortened release time lag (M-73)
Enables the electronic dial's function to be used in the reverse direction (M-73)
Prevents exposure compensation with the Quick Control Dial (M-73)
Enables Quick Control Dial switch to turn on/off Main Dial too (M-73)
Add original decision data (M-74)
[Combination]
Allows you to check the settings (M-75)
Allows you to save the settings (M-76)
Allows you to load the saved settings (M-76)
* Omission of P.Fn-11, 12, 13, 22 and 29
To match the numbers and descriptions for the Personal Functions to the EOS-1 series, some
numbers have been omitted.
M-60