Tips to install cardboard headliner?

Want to see what the headliner retaining clips look like? Here's your clips.
Will this do ya? Short side clips over roof rail pinch weld - long side laps over edge of headliner.
Honestly, they aren't necessary, once the metal trim strip is fastened over the roof rail. They
were probably a simple way to keep the headliner up out of the way during assembly at the plant.
Jerry