Using the circumflex - button
I was wondering whether there is a way to use the circumflex-button (the one looking like a roof, https://en.wikipedia.org/wiki/Circumflex) in OS without having to press it twice in a row.
My goal is to implement a rating scale (likelikhood of remembering: 0% - 100%) in steps of 10%. On a German keyboard, however, the circumflex button is located next to the 1 and I would like to set the circumflex button as 0%, 1 as 10%, 2 as 20%, etc.
My problem now is that you need to press the circumflex button twice in order for OS to register the input. I know this is tight to the operating system, but I have seen this procedure work in E-Prime (i.e. pressing the circumflex button once and registering it as a valid input).
So, is there a way to achieve this within OS?
Thanks in advance!