It would be a good enhancement to the viewing of the query plan, if the person could import a query plan. Because the person who wants to view a query plan in designer, may not be the one who created it. I thought of that today when I wanted to view a plan someone attached to a jira. This plan was pretty big and hard to view just using a text editor. If I could have used designer to view the plan in a graphical manner, it would make the viewing easier.