I believe that I have a reasonably good understanding of schemes. But I have spent about 1/2 hour trying to add one assignee to one project and no matter what I do I wind up adding a user to ALL notification schemes. Put simply, all I want to do is this:
I have three projects, one called IT service desk. I want all notifications for new issues to go to one user, Mary Smith. That's it. I do not want any notifications for any other issues for any other project to go to her. But I cannot seem to find the sequence of steps to allow me to make that one change to that one notification scheme in that one project. If I can get this, I should be able to do it for the rest.