How can I export a course that's not mine but shared with me?

My coworker and I are developing a course together. As it happens, she created it initially, and then shared it with me. We can both edit/publish the course without any problems, but when I try to export the course (because I'm the one who deploys it to the website), I get an error: "Sorry, you do not have rights to this project."

I don't see anything "obvious" that we should be setting on the project to let me export it, but the terminology of some of the settings is a little vague. Is there some setting we should have or some operation we should perform to let me export the course too? Or is that just one of those "you can't do that" things?

We're on Xerte 3.8, BTW.

Thanks,
--Dave

Hi
get your colleague to access the properties of the project where she shared it with you and change your access to co-author rather than just editor. You'll then be able to export and duplicate etc but not delete the whole project as only the creator can do that.
HTH
Ron