ladders, modules that astronauts can live in, mabye a gold paint in default for astronaut visors, auto deactivation of the nav sphere (not seeing it) in EVA, mabye add a customizable flag the astronauts can plant, ETC if anyone has suggestions you want to add you can say in comments so jundroo can see those too
hatches on command pods and more command pods too mabye and helmets that are removable...