I can't figure how to remove the inside upper door trim, on a 1968 Barracuda Hard Top Coup.

I'm installing a headliner. There is one screw towards the front on the metal trim piece, it seems clipped on. This is what covers the headliner. I'm thinking if I remove the inside rear side trim, under the window crank the the trim piece will slide back, like the outside under door trim.
Anyone do this before? Out here today? I'm going to take the back seat out now, and I'll check back, with my findings.