Only problem with this is when in tablet mode, if you are using windows 10(as it says you are). It will start OneNote in the background but will not bring OneNote to the front and thus it will not recognize it is even running. So subsequent presses of the button, open new copies of OneNote in the background. This also happens when using the aditional options to assign the top button in the surface app. I haven't figured a way to make it come to the front.
