Nikon Z9 Mirrorless Camera - Manual (Page 748)

748 B The Setup Menu: Camera Setup
Save current camera menu settings to a memory card. You can also load
saved settings, allowing menu settings to be shared among cameras of
the same model.
• If two memory cards are inserted, the settings will be saved to the card
in Slot 1.
Save/Load Menu Settings
G button
U B setup menu