Nikon D7200 Menu Manual page 20

Follow the steps below to hide or reveal selected pictures.
1
Choose Select/set.
Highlight Select/set and press 2.
2
Select pictures.
Use the multi selector to scroll
through the pictures on the memory
card (to view the highlighted picture
full screen, press and hold the X/T
button) and press W (S) to select
the current picture. Selected pictures
are marked by a R icon; to deselect a
picture, highlight it and press W (S)
again. Continue until all the desired
pictures have been selected.
3
Press J.
Press J to complete the operation.
20 Menu Guide
W (S) button