Canon EOS R5 C VR Creator Kit with RF 5.2mm f/2.8 Dual Fisheye Lens - Manual (Page 656)

Multi-Function Lock
Specify camera controls to lock when the Multi-function lock is enabled. This can help
prevent accidentally changing settings.
1.
Select [ : Multi function lock].
2.
Select camera controls to lock.
Press < > to add a checkmark [ ].
Select [ OK ].
Pressing the < > button locks the selected [ ] camera
controls.
Note
An asterisk “*” to the right of [ : Multi function lock ] indicates that the default
setting has been modified.
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