Hey. Figured it out. The answer was more or less staring me in the face.
In the "es_temporaryinput.cfg" there was a line for the hotkey, which I more or less copied.
This is my solution. From what I've tested this hasn't messed up anything else even though it does share the
id="0" with one of the axis entries.
Thanks for the input. You can consider this topic "solved".