how do i use fuselages

@Toinkove i see this thing called grid something o rwhatever it says

@Simplestupid sorta.
It explodes a bit too lol.
Decompression in both directions.

@Toinkove the fuselage peice, i need to press it 100 times for 1 unit, i dont wanna waste my time that much

@CloakPin like a submarine?

Also crew compartment will implode if used in space.