by Andrew Davis.
Im not sure how we could acheive this without changes in core other than simply by going into the database directly. Your best bet would be to raise an MDL requesting the new feature. That can serve as a place to discuss ideas and attach potential code changes.
If you need this urgently done and do not have the technical skills required perhaps post it on the Moodle job board. https://moodle.org/mod/data/view.php?id=7232