Nikon D780 DSLR Camera (Body Only) - Manual (Page 199)

153 Shooting Settings
A s : The Center Focus Point
In all AF-area modes except [ Auto-area AF ], a dot appears in the focus
point when it is in the center of the frame.
A Quick Focus-Point Selection
For quicker focus-point selection, choose [ Every other point ] for Custom
Setting a6 [ Focus points used ] to use only a quarter of the available focus
points (the number of points available for [ Pinpoint AF ] and [ Wide-area
AF (L) ] does not change).