Oh I see, sorry for the misunderstanding.
I don’t believe there is a way to adjust that without working some magic at PHP level and it would require some fairly in-depth knowledge of PHP and WordPress to figure this one out: also, after chatting with one of the devs, it sounds like the particular pattern you want – a URL with Post ID – isn’t the easiest thing to achieve for custom post types.
So, I’m afraid on this occasion I don’t think there is a lot we can do to help here. Of course if you do manage to produce a solution for this it would be great to hear back from you so anyone else wanting to do this can benefit 🙂