As it is now, if you accidently "click" outside of the metrics window, you lose everything because the window goes away. So you have to start from scratch. This should not happen yet I've had it happen to me before. I get all of my metrics chosen, a combination of same session and 7 day last click. Then I'm trying to move them up or down and I accidentally clicked outside of the window and lost everything! My idea is that the metric window should be fixed to where you either have to "save" or "cancel" before the metric window will close.