I would love to have the ability to have a single button at the bottom of the Open Project and Open Room interfaces to open the previous project and room. I know you can access recent projects and rooms from the drop-down menu in those interfaces, but I'm a fan a single click (think LEAN!) versus multiple clicks. I know it's probably not a big deal for most people, but when you can eliminate as many multiple click commands as possible you become more efficient - again, think LEAN!