1970 Duster Rear seat and carpet questions

First the rear seat, is there anything that holds the rear seat down other than the front 2 hooks?

Second question with the carpet, on the rear side panels above the flap that the wires tuck into there appears to be a grove with some screw holes. Is there a trim piece that would go over the carpet? Or is that where the carpet stops? It looks like it’s about 3inches below the rear side panel. If better pics are needed please let me know.

Not sure if the carpet tucks behind the 1/4 window panels or if that gets a trim piece to finish the edge. Don’t want to cut the carpet to short.

Thanks everyone

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