We have a SharePoint 2007 server and we're looking to automate the process of adding a Secondary Site Collection Owner via PowerShell script. From what I've seen we would need to access the Cmdlets within the SharePoint Server module to do this.
My question is, would this be possible with SharePoint 2007 or would this require upgrading to a higher version?
Edit: I forgot to ask if it would be possible to configure this setting using the SharePoint Online Management Shell? I've browsed the cmdlets, but couldn't find anything related to setting Secondary Collection owners.