Hi Susan, On the comment issue, the project owner is not automatically tagged on a comment (unlike with a Task where the assignee automatically gets notified of a comment). The project owner gets other notifications depending on what you've turned on (under Setup > Email > Notifications > Information about Projects I Own). But they don't get an automatic tag on comments. So if they want the project owner to know, they will need to tag the project owner in the comment. Hope that helps.