Tweaking light cone for locos?

[plethaus]

Is there a way to tweak the size/length of the light cone the headlight puts out? Some of them are really ridiculous, like the GP38-2 that comes with Stevens Pass lights up everything in front of it to like a mile and a half out (WAYYYY too powerful.) I browsed around a bit but can't find where/if this can be adjusted.

Thanks :)

[buzz456]

Look in the light folder in RailVehicles\Diesel\whatever you wish to change

[ColoradoRailfan]

Can you please be a a little more specific on that? Im trying to do this with the PS F59PHI and I dont know how to do it.