Well, it's nothing special. Just a rope through some hook eyes. I pull on the rope and the pop door goes up. I have a little loop in the roop at the end that I slip on a hook to hold the door up.
It's nasty cold with rain and snow right now. And I'm under the weather myself. Slept 13 hours and still not feeling great. If you still need a picture, maybe later in the week.
Here are some Google pictures almost exactly the same as my setup.
Rope attached to screw eye on the pop door...
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Use more screws eyes to direct the rope to my door...
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Then have a loop in the rope or a carabiner to put on a hook to hold the door up. It's just that simple.
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thank you.