Yes, I did this for a migration with my old company. It was with 10.1 but I had to write a custom command line script to do this. Basically, had some data in a tab delimited or CSV format and the loader program created the change objects. I can see if I still have a copy of it but no promises, was a few years ago. I created CRs and CNs using this process. I believe I also had it link to the changeables as well.
...and next time I should check dates. I believe that Steve has long since solved this problem. That's an issue with the community site of old posts resurrecting themselves when someone replies.