I have a multi-site network - multiple users, each with their own blogs.
One of the users just purchased a theme, that I installed as the super-admin.
They want to ensure that they are the only person in the network to have access to this theme. Other users shouldn't be using the theme that they paid for.
Is there something I can do as the Super-Admin to make this happen? Ie. enable it only for that user/site?