The various elements in Console (Registered IDs, Group Associations, Etc.) would benefit greatly if they had the ability to expire.
For instance: A Registered Client is added to an Endpoint Group which now has a field that states "expiration timeframe". The admin selects 7 days. Once added, the "days left field" is populated with actual days left to be associated in the Endpoint Group screen. Once expired, the Client is removed from the Endpoint Group.