@ale @jeroenpx @f4kethis I was waiting before adding more specific instructions but now I feel like it is about the time.
Items (vent/pipe/engines etc.) must contain comparable parts to work. You replace and attach parts with E. Some (3) Items are interacteble for you to press F. They won't respond if they are not working.
Examples: 1) if there is a meteor in front of the ship you must Interact (F) with the steering wheel panel to avoid it. But if steering wheel panel is missing the wheel part, you won't be able to do so and you will crash. 2) If the pipe is leaking (missing the valve) you can take (E) the steering wheel and place it onto the pipe (E again near the pipe with the wheel in hands) to fix it.