Old thread - but after seeing your git I wanted to thank you, and also ask if it were possible to expand on this?
I have searched high and low but sli surround users are few and far between. I don't have much use for a surround toggle as my monitors are in portrait for now but what I do need is a means for "bezel peeking" as nvidias built in shortcuts haven't worked on windows 10 for ages now and in games like witcher 3, I can't see much of the chat selection boxes as they're obscured by bezel.