How can we remove stale objects on either weekly or monthly basis, to improve server performance?
WORKAROUND:
Please run the groovy script as a rule & schedule it.
Schedule Driven options are pre-defined schedules that you can find it under:
Administration | Schedules | Manage Schedules.
This dashboard has the schedule name & Next Scheduled Time.
IMPORTANT: Stale objects removal can also be automated via Object Cleanup dashboard.