We have several room resources in our Exchange 2013 environment.  Occasionally, we need to make changes so new people can actually see what appointments are scheduled and not just see “busy” in the time slot.  I used to be able to make these changes via Exchange Management Console in previous versions of Exchange; however, it looks like I have to go to Exchange Management Shell now.

The commands used are:

Get-MailboxFolderPermission room.name:\calendar |fl
Add-MailboxFolderPermission room.name:\calendar -User user.name -AccessRights {Editor | Reviewer}
Set-MailboxFolderPermission room.name:\calendar – User user.name -AccessRights {Editor | Reviewer}