You may have a better response or luck by searching in the Aftermarket Software forum.
That said, there are three 3rd Party Applications that I know of out there that will change the sound profiles on a schedule. In no particular order:
- RingScheduler, by CellAvant Inc.
- Profiler & ProfilerPro, by Toysoft Inc.
- BlackBerry Profile Switcher, by WCS Software.
Before you ask, none of them are free. All have trial versions ranging from 7 days to 30 days. All three cannot change profiles while the device is locked/holstered (this is a RIM limitation) and require enabling of Keystroke Injection in Permissions.
I have bought and used all three, all do the job well and support scheduled profile changes, calendar keyword changes and temporary (impromptu) changes.
Supervising Manager of the Department of Redundancy Department.
BlackBerry Certified Support Specialist