How to set L/R trigger light-press (analog) with keyboard?

[SOM92]

I'm trying to set light-presses on keyboard, but I can't seem to get it working. I set L-Analog and R-Analog but even when I press them a light-press isn't registered. I even tried setting the threshold to 1 and 0 but it doesn't seem to work. Yes the analog keys are different than the normal L and R keys.

[ExtremeDude2]

Show use a pic of your settings.