#Get Input for Mailbox to Add Rights on
$CalendarinList = Read-Host "Email Address of Calendar"

​#Get input of what account is to be added to calendar 
$UserwithRights = Read-Host "User to Get Rights"

​#Adds User to Calendar 
Add-MailboxFolderPermission -Identity "$($CalendarinList):\calendar" -user $UserwithRights -AccessRights Owner

​#Get ACL to Review New Permissions 
Get-MailboxFolderPermission -Identity "$($CalendarinList):\Calendar" | Format-table 

​#Remove a users permissions
#Remove-MailboxFolderPermission -Identity dawn:\Calendar –user shead -Confirm:$true