Adding the option to remove access after completion of course with establish delay

Once the traine has completed its training, it would be great to have the option of keeping them active for a pre-established period of time.

As an example, One the training has been completed, the student can acces the training for 7 days for personnal review, then the access are no longer active. The student would need to either request the access or buy the training again.

This would be good for better follow up of active users and good for e-commerce.