How do I allocate a subscription to a user?

An Account Administrator can perform this action. From the top menu, go to Users > Manage Users. You will see all your user's usernames in a list, and can check the box under the "DistillerSR Enable/Disable" column to allocate a subscription to a specific user. 

Note: you must have enough total subscriptions available in order to allocate them - this is indicated at the top of the Manage Users screen.