Foran

Does anyone know the name of the interior game object for the space plane hangar? I'd like to be able to make a part that does the same thing the new mumech launchpad/vab obliterator does but with the sph. I've tried a couple names now, interior_spaceplane, interior_spaceplanehangar, but neither of those are correct.

How in the world do you actually set up the solution in VS? I've never used c#, I've always been a c++ person. Do I just load the files straight into Visual studio and hit build or is there something outside of the svn I need? Are there any properties I need to set up inside the solution itself?