Keeping an eye on this, same for me. :) And I would like to know how to do it.
A friend and I made a character together, and we'd like to list it on both our accounts, but it doesn't seem like that's possible?
Is the closest we can get to this just having the character on one account and listing the second person as designer/creator, or is there a way to have two accounts edit one character and I just haven't found it yet?