You could use sudo to either user or, if access given, wheel group to perform actions.
Ofcourse this would be a hassle with 10+ users, plus sudo is strict on what to access.
Else you could (have admin) put a script into their crontab or in a system users one with sufficient access. Ofcourse the users' crontab would only run when they're in. A system users crontab would call for a separate user with access to /home/users or wherever them users is at and is IMO the best option, but maybe you could elaborate a bit on what you're tryin to do? Thatll clear things up on what's possible or not.