I need some help understanding how to properly set up the extras folders in zmodeler so i can make the lights properly function on my car. I looked everywhere for a tutorial on how to do it but i cant find one that explains how to do it from step one. Im havinf troubles with the "extra_1_L0" and stuff like that having multiples of them. 

 

Any help would be much appreciated or finding a video tutorial or something like that , i wanna finish my first mod soon. 

you have to attach extras if you have some with the same name. Like if you have a lightbar and then another light with extra_1 you need to attach the extra_1 from the light to the extra_1 from the lightbar

So I have to use the attach tool and select both lights to attach then