Can this functionality be implemented utilising API?
Bookmarks may be retrieved and individually set. The user could implement an Event.Ready to set their persisted marks
There is no event for (re)set bookmark.

Is your feature request related to a problem? Please describe.
#1673

Describe the solution you'd like
Option (maybe default on) to persist bookmarks across sessions. A single list is a practical solution than per-root directory.

Describe alternatives you've considered
Implement Event.Mark.Set

Additional context
#1673 #1850