Braking and accelerating on same axis?

Hi, after a lot of work, my inputmap for my controller magically worked after I updated it to the experimental version.(thrustmaster)
Now that it works, I configured everything but I don't understand how to get braking and accelerating on the same axis.
I'm definetly not an expert and just copied from the internet and other working inputmaps (thustmaster ones), and thats how I got the camera, etc to work on the controller.
I tried looking on other inputmaps, but none of them seem to have braking and accelerating on the same axis.
I hope someone can explain it to me.
ps: I don't understand any of the coding on beamng.cs

 

I think the 360 controller inputmap should have them on the same axis because the triggers are the Z-axis. I'm no expert in input maps but if you post yours I could take a look and see if I can give you a hand. I won't be able to test it at all though.