SDAMax II is an excellent front-end layout to use for both vertical and horizontal oriented arcade machines. The idea for SDAMax came when I decided to implement a “full screen” option for the SDArcade layout … however, with some of the additions I’d made to the SDArcade layout, I decided the best plan of action was to create a “fork” of sorts and flesh the idea out as it’s own separate layout. This is the result. The layout works great in both horizontal and vertical modes (changeable via the settings menu).  I invite you to give SDAMax II a try!