Comment 1 for bug 1296555

Hm, interesting idea. You could do some sort of "institution groups" thing to handle this.

But, I can't really see us making the access control system more complicated at this time. If you need a higher level of granularity than the Institution system provides, I'd suggest managing your institution memberships in an external database, and then write a cron job that syncs that to the Mahara database.