Sync group membership from local default group to synced group

In a few scenarios, customers provide automated access to the user and the user gets added to the default product access group (Ex: confluence-users).

The requirement here is to add those users to synced/provisioned groups as well. 

As of now, the customer has to:

1. Add user manually to AD group after it's added to default product access group.
2. If it's Azure they have to wait for 40mins for the next provisioning cycle to run to sync this user.

The suggestion here is to have some feature that removes this manual work.