Off-screen click in spectator mode minimizing screen

The biggest out-of-game improvement I would like to see in LOL is not forcing the screen to minimize when something off-screen is clicked.

I often will want to spectate my friends, either when I'm waiting to play with them or just killing time, and I always have two screens. However, in spectate mode, its impossible for me to do anything else on my other screen and just spectate in the background, since clicking on my other screen with cause league to minimize. If this is just an option that I am able to change and just haven't found, please tell me, but otherwise, this is a very easy, but a very large, improvement to spectator mode.