There are really two cases here:
1) where I am doing a back up and restore I need to save the student specific information, like grades and digital dialog stuff.
2) where I am moving a class, or trying to reset it I do not want the personal data collected.
This request has been implemented. Enjoy!
Kevin Seppi commented
If we had this ability we could handle several other requirements ourselves, for example we could copy a class from a previous semester or even from another instructor. We could also keep a revision history of our work (especially if the export were human readable).