How Do I Choose My Lightbar?

I Need Help With My lightbar because I got a lightbar mod and I cant find the option to choose my lightbar.

 

Press "Control W" to open Parts Selector. Some lightbars mods are in the "Additional Modification" slot, if there's a Additional Modification slot in the selector, click at "Empty" text near the slot name, next try to find the lightbar in the opened list. But if there's no Additional Modification slot or the lightbar is not in that slot, you should extend the body tab with ">" symbol near the slot name.

If you click at that button, the tab would be extended and you'll see more slots to edit. One of those should be lightbar. You can extend some other tabs that they have ">" symbol in the left side of the slot name too and see what is in them to edit.

 

Thank You SO much!