Grant Global PublishingEditor Access to Public Folders

# This is potentially dangerous.
#Substitute EXCHMBX01 for an actual server name
#1. Check Existing Perms
Get-PublicFolder -Server 'EXCHMBX01' -Identity "\" -Recurse | Get-PublicFolderClientPermission -Server 'EXCHMBX01' | ft -auto

#2. Grant Access to Group (needs to be Distribution Group enabled?)
Get-PublicFolder -Server 'EXCHMBX01' -Identity "\" -Recurse | Add-PublicFolderClientPermission -Server 'EXCHMBX01' -User "Powerful Folks" -AccessRights PublishingEditor


#3. Check Perms Afterward
Get-PublicFolder -Server 'EXCHMBX01' -Identity "\" -Recurse | Get-PublicFolderClientPermission -Server 'EXCHMBX01' | ft -auto