Previous and Next
< and >, at the top right, also on Alt+[ and Alt+], move the view from box to box.
Back through your jumps
After you jump with the lens, < goes back to where you were and > forward again, like a browser’s history. Jumping somewhere new from the middle of the history drops what was ahead.
File by file
When there is no jump to go back or forward to, the buttons step through the files instead: each press goes to the first box of the next (or previous) file, wrapping around at the end. Use it to tour a project file by file.
Each step centers the box and marks it with a yellow ring. Escape clears the ring.
The buttons are greyed out when there is nowhere to go: no history in that direction and at most one file.