Retract Rungs Section by Section

What happens here

Locate the release buttons or levers on the sides of the lowest extended rung. Press these buttons simultaneously to unlock the section. As the section unlocks, gently guide it downwards. The ladder will retract with a controlled descent, often with a soft hiss of air, as shown in the video. Repeat this action for each subsequent rung, working your way up the ladder. The man in the video presses the buttons on one rung, allows it to retract, then moves up to the next extended rung and repeats the process.

Goal: Safely collapse each rung of the ladder