R12 - Change Primary Email Address associated with user

Summary

Existing user whose primary email is incorrect. I cannot figure out how to update the user primary address

Content

We just moved over to R12.  I cannot for the life of me figure out how to update an email address on a existing user.

I was able to update the resource, for CX, and change the default but that does not update the user.  If I go under the person, there is no option to end date the old work email address so I can add a new work email address.

Thanks