Ladder/Elevator Tube

An elevator tube or Ladder tube would be awesome, expecially building a base close to the surface, and then having an elevator to take you to the bottom of the ocean to another section of your base instead of having room stacked on room stacked on room to get to another level. Or maybe a turbo lift or tube system that you can wind through the terrain like a tube at a drive through bank. You get in the tube and then your “personal canister” gets sucked to the other end of the tube! This feature would make for some very interesting base building! :)