Led Headlight flasher for iracing Help

Greetings community

Im looking for some help to creat a Headlight flashlight for iracing 

The idea is when i press the associated button for the Headlight flashlight on the sofware i can get a blinkg light for 1 o 2 seconds on my wheel led and then stops.

i been trying thru static light effect but i cant find out in how to associated the effect to a button

Thanks beforehand!