View Shared Mailbox Private Item

 

Get-MailboxFolderPermission SharedMailbox@email.com:\Calendar
 
Add-MailboxFolderPermission SharedMailbox@email.com:\Calendar -User  -AccessRights Editor -SharingPermissionFlags "Delegate,CanViewPrivateItems"
 
Remove-Mailboxfolderpermission Sharedmailbox:\calendar -ResetDelegateUserCollection

--------------------------------- End ---------------------------------