Canon EOS R6 Mark II Mirrorless Camera with 24-105mm f/4-7.1 Lens - Manual (Page 284)

6.
Set [Continue Mult-exp].
Select an option, then press the < > button.
With [ 1 shot only ], multiple-exposure shooting will be canceled
automatically after the shooting ends.
With [ Continuously ], multiple-exposure shooting continues until the
setting in step 2 is set to [ Disable ].
7.
Shoot the first exposure.
When [ On:Func/Ctrl ] is set, the captured image will be displayed.
The [ ] icon blinks.
The number of remaining exposures is indicated on the screen (1) for
reference.
Pressing the < > button enables you to view the captured image
( ).
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