Yes very handy, just realized it after talking with drule about it. Because right now, event won't lead you to an adjustable screen size.
After you play with changing screen resolution and zooming each layer to do an exact fit on fullscreen, you either have a visual problem with sprites when they reach low values on Y position (tested it on deadeye's first platform school tutorial), the main sprite vanishes from 64 pixels at top and higher (you can fix that by pulling all the layout graphics down by about 100 pixels).
Or you have a collision problem if you try the general zoom action (that zooms all layers) and do a "scroll Y" action to reposition the layout with current screensize.
But all that just make you struggle against something that can be only one click to the user, in order to complete a fullscreen game
I hope you can prove me wrong, with a cap sample that can do all this without the errors mentioned above. otherwise i'm one from people waiting for this function to be added.
A thanks to Ashley and all other members of dev team for making such a pro application that is beyond other toolkit on the market now.