Nikon D780 Reference Manual page 710

Option
[List saved
values]
D
Deleting Saved Values
To delete values saved using [Fine-tune and save lens], highlight the
desired lens in the [List saved values] list and press O ( Q ).
664 Menu Guide > B The Setup Menu
List values saved using [Fine-
tune and save lens].
Highlighting a lens in the list
and pressing 2 displays a
[Choose lens number] dialog.
•
The [Choose lens number]
dialog is used to choose the
lens identifier. Press 1 or 3 to choose an identifier and
press J to save changes and exit. While [Fine-tune and
save lens] stores only one set of values for each lens
type, choosing different identifiers lets you save
separate fine-tuning values for two or more lenses of
the same type, for example by choosing an identifier
that is the same as the lens serial number.
Description