Ability to assign exams when adding a new user

Currently we add new users upon notification from HR, usually @ 2 weeks before their start date. However, I then have to wait until their start date to assign them any exams (their name doesn't appear in the department selection before their start date). It would save a lot of time if exams could be assigned either through the personnel wizard, or at least through the exams as soon as a new user is added