Canon EOS 1D Software Instruction Manual page 183

You can specify the Personal Function settings listed below in the different windows.
[Exposure functions 1]
Disables the shooting modes (M-62)
Disables the metering modes (M-62)
[Exposure functions 2]
Specifies the metering mode for manual exposure (M-63)
Sets the maximum and minimum shutter speeds to be used (M-63)
Sets the maximum and minimum apertures to be used (M-64)
[Exposure functions 3]
Registers and switches the shooting mode and metering mode (M-64)
Repeats bracketing during continuous shooting (M-66)
Sets the number of shots to be bracketed (M-66)
Changes the bracketing sequence for C.Fn-09-2/3 to increased exposure,
standard exposure, and decreased exposure (M-66)
Retains the shift amount for program shift (M-67)
[AF functions]
Disables focus detection (search driving) by the lens drive (M-68)
Disables the AF-assist beam from being emitted (M-68)
Enables automatic shooting when focus is achieved at the fixed point of focus while
the shutter button is pressed fully (M-69)
Disables automatic AF point selection (M-69)
Enables automatic AF point selection when C.Fn-11-2 has been set (M-70)
[Drive functions]
Sets the continuous shooting speed (M-70)
Limits the number of shots during continuous shooting (M-70)
Enables quiet operation when the shutter button is OFF after picture-taking (M-71)
Personal Function Settings
M-59
M
4