Get/Edit Room attributes Powershell
Attached script will allow you to list and edit the attributes of a specified room resource.
Use Get-CalendarProcessing to list the attributes
Use Set-CalendarProcessing to edit the attributes
After 'Identity', replace the email address with the room email address you'd like to edit.
If the exchangeonlinemanagement module isn't installed, you can use:
Install-module ExchangeOnlineManagement.