It would be massively useful to be able to filter users with the filter option of 'completed', 'incomplete' or 'not enrolled' in a designated course. For example, I have a group of 2k new hires in the last 3 months, some of which received the new hire training package and some of which who did not due to an issue with the enrollment rules. I need to see who out of the 2k has not yet received an enrollment in a list of courses so I can assign them now.