I realize this is an old thread, but I figured I would ask here before starting a new one. How much customization is possible with the Discovery Center? I would like to alter the platform buttons, add collections, and remove the extra lists it adds on the bottom. I'm aiming to create something that's mostly the Polymega interface and add in some nested Atari 50-like stuff (If I can figure out how to build something like a timeline). I'm really just getting started so any advice is welcome.