Hello captains!I need a simple help...Last night a saw a video on YouTube of a 737 flight recording, and I noticed that there is a passenger stairs attached to the airplane while it is on the airport. Moments later, the stairs retract inside the airplane.I'm interested in how to "activate" these stairs. What command do I need to input?Thanks in advance!

Go to the CDU menu page, then fs actions and DOORS promt where you'll find the Airstairs. But your aircraft needs to have them installed first, which is a customer option choosable in the CDU aswell.

Hey Mattias Nordin, thank you so so much!That's a simple command but I really didn't know that!It worked perfectly! Thank you!