Is it possible to rerun the marketplace setup? I thought that one of my apps was purchased outside of the marketplace on the developer website and marked it accordingly, turned out that wasn't the case and I do have a valid purchase here. 

So I want to re-run the initial marketplace setup wizard and mark this application correctly, is that possible or it is one shot only?

You'll need to submit a ticket for assistance.

Just now, Stuart Silvester said:

You'll need to submit a ticket for assistance.

OK, its a test install, so not a big deal overall, but I will pay more attention when updating my production environment. Probably its a wise to put a big fat warning that this is one time only 🙂