This is a minor annoyance but also something I encounter regularly, so thought I'd add a request!
I sometimes find myself expanding the code editor to view longer experiment code. Then, if I need to do something in the options dropdown, I either have to resize the editor smaller or click out of it entirely. Like I said, minor annoyance but one that exists nevertheless!
Screenshot for reference: http://www.screencast.com/t/ILrOr8dQ