Found beltline trim for Duster.Where to drill?

Can somebody school me on this trim? Was it an option? My Duster is torn apart for resto right now and I don't remember if it was on my car or not. When I get my kids under control for the night, I'll go out to the shop and see if the doors have holes for the clips. Any info on this trim would be appreciated. Thanks
I don't know much about this trim.Didnt even know it existed until I spotted it out in a pic and had to have it.Apparently pretty rare.