As I scrap I have a tendency to let stuff <especially paper> hang outside the paper line edge but then I lose track of my edge. When I go to print something is a little too far off the edge. If I turn off the keep aspect so that I can size the paper to the exact size sometimes that does not work. Being able to see my paper size outline all the time would work great. Maybe there is already a way to do this and I have missed it.