I am back with a newly acquired 2011 XJL Supercharged with a couple questions

I notice that there are no DRLs on the car or an option for front fog lights. Can some of you enlighten me on these subjects. I understand the DRL’s can be activated by the dealer and am wondering if it can be done by the owner without what will probably be costly stealership charges. Also why are there rear fog lights on a switch but not front fog lights? I will appreciate anyone’s help.