Invite groups to workspaces

It would be very useful to add AD groups to workspaces not only apps. This would make administration much easier. Currently, in my organization, we have a Playground workspace were users can create reports and play around with the data and have it all in one place. Unfortunately, we have to manually add them to that workspace whenever a new user should be granted access to the data. It would be really cool if we could administrate this in a group instead.

Thanks :)