Modify profile > Fast Backup settings page > Force Rescan button.
There's no context-menu item to do so in case of accidents. There is a command-line switch you can use (Help > Search > 'command-line') which you could use in a dedicated shortcut (drag profile to desktop to create one, then edit its command-line) if you want.
DO read the Help on Fast Backup about the caveats of using the archival FB mode.
Bear in mind deleting the Destination generally won't do a thing because of course (unless you Force Rescan) the profile isn't scanning there (that's the whole point) so how will it know you have done so?
There's no context-menu item to do so in case of accidents. There is a command-line switch you can use (Help > Search > 'command-line') which you could use in a dedicated shortcut (drag profile to desktop to create one, then edit its command-line) if you want.
DO read the Help on Fast Backup about the caveats of using the archival FB mode.
Bear in mind deleting the Destination generally won't do a thing because of course (unless you Force Rescan) the profile isn't scanning there (that's the whole point) so how will it know you have done so?