Canon EOS R5 C User Manual page 718

Deleting All My Menu Tabs/Deleting All Items
You can delete all the created My Menu tabs or My Menu items registered on them.
Delete all My Menu tabs
You can delete all My Menu tabs you created. When you select [Delete all My Menu
tabs], all the tabs from [MY MENU1] to [MY MENU5] will be deleted and the [
revert to its default.
Delete all items
You can delete all the items registered under the [MY MENU1] to [MY MENU5] tabs. The
tabs themselves will remain. When [Delete all items] is selected, all the items registered
on all the created tabs will be deleted.
Caution
Performing [Delete tab] or [Delete all My Menu tabs] will also delete tab names
renamed with [Rename tab].
718
] tab will