Thanks for the request. Currently there is a way to set this property through powershell for groups, but it only works for users in OWA. We have this in our plans for Outlook desktop as well and will be working on it.
An error occurred while saving the commentAnonymous commented
For me, as a teacher, it is important that I can decide who is able to add or change items in the calendar. Some students have a tendency to mess about with the dates for tests e.g.Anonymous supported this idea ·