Hide games that do not have box art

I love launch box...but with so many importable games that do not have box art i find my collections look messy and incomplete. I want these games in my collection but i'd like to have a switch or option to filter out games that do not have box art...of course i'd like to be able to switch back to all games easily when i want to manage my collection. Hoping this might be an easy addition. Cheers