I use my Macbook with a large external display at home, leaving my macbook sitting open across the desk from me. I like to position my iTunes library on the laptop's display screen, but my eyesight's not great and sometimes it can be hard to quickly adjust from staring at my huge external display to my comparitively tiny 13" Macbook display which is at the opposite end of my desk. What I'd like is some sort of iTunes add-on or similar which will allow me to change text-size, customize my playback controls and potentially display a nice big 'now playing' display giving me plenty of information about the currently playing track/album/playlist etc... I know this is a big ask but I'm just wondering of anything like this already exists in 3rd-party app form??