I'm looking for a solution to the following situation:
User A's calendar contains both private and public events, and a group of users G has view permissions for this calendar. Members of G are not supposed to see the details of A's private appointments, just the fact that there is an appointment - this is working fine so far.
However, there's a privileged user B who should be able to see the details of all of A's appointments, including the private ones.
So far I've been unable to find a way to accomplish this - any suggestions?