Can we go fullscreen outside of the Home screen?

I find it helps me to have SongPop in fullscreen when I play. Outside of fullscreen I have two scrollbars, inside I have one. Outside, the game elements are freely distributed to well more than a screen, inside the layout is designed to fit. But if I forget to go fullscreen before I click Play, I'm screwed. I have to complete the round before I can return to the Home screen and click the fullscreen button.

Can we get a fullscreen button on EVERY screen, not just the Home screen? Or at least have a fullscreen button on every screen of playing a round?

(I play on Facebook)