K90 Macro: Key held down (Autorun in games)

I'm trying to get a macro to work for DayZ/Arma etc.

Basically, I want to use G1 to press the up arrow key and keep it pressed until I press G1 again. Try as I might nothing works.

either the macro will press the up arrow key once, or it will repeadedly press it, resulting in my character vibrating about, like I am tapping the key myself.



Here is what I have set up:





Any ideas what I am doing wrong?