Nikon Z 7II User Manual page 428

Option
[Overlay
shooting]
[Select first
exposure
(NEF)]
•
[On]: Earlier exposures are superimposed on the view
through the lens. The earlier exposures aid
composition of the next shot.
•
[Off]: Earlier exposures are not displayed while
shooting is in progress.
Choose the first exposure from the NEF (RAW) images
on the memory card.
C The Photo Shooting Menu: Shooting Options
Description
311