Time condition plan for downloading

Hello,
Question for Scenario:

DocMan with 1200 files in 12 categories - category1, category2 ... category12.
The user pay only one time for 12 month but the access to the categories is with diferent stages:
Suscripcion plan for access to this 12 categories, but with time condition: first month access only to category1, second month only access to category1 and category2,.... twelve month acceso to category1, category2 ... category12.

Thank you.

Sorry, no such timed content release is available. You'd need to manually change the users Docman group each month or discover a way to do this automatically by way of new development. I recommend redesigning your subscriptions setup.