Give More Screen Estate.
Minimize the menu bar. Keep unnecessary stuffs like name of the user, membership type in "about", Make the big Doodly logo smaller to fit the new menu bar. Put some useful buttons like "my videos", "save", "export", "preview", "scene settings" "zoom in/out" etc in menu bar and make it accessible, so that we don't have to scroll and search where are the those buttons in actions tab. And, that will unleash better space to "items". UI will be a breeze.