Slides - How to manually close

So far (knock on wood!) no issues, but I'm wondering if there is some information somewhere about how to go about getting the slides closed on my trailer if there is some sort of problem. Anyone know?

I have 2 slides. I think the main one (living room) has a hydraulic ram but not sure. Need to know what to look for. The bedroom wardrobe slide has gears of some sort that move it in and out via little zig zaggy metal tracks on the side. Need pics??

I've called the dealer and they didn't help much and said the manufacturer has no info on it. There are no cranks that I've seen.

Dealer said on the hydraulic one, find a valve and open it and let the fluid out/pressure off and push it in. Will that really work? Its pretty dang big! What will prevent it from sliding back out when I'm hauling it down the road?

On the other one, dealer said find the motor and disconnect it and push it in. This seems possible because its a small and I could theoretically re-engage the motor to prevent it from opening back up...presuming I can access the motor.

The other suggestion from dealer was check on the internet, so here I am!

Thanks.