1. Drag and drop all three Shape objects you've created into the main modelling window. Switch to the Top view and align the umbilical section with the centre of the ship's rear. Then align the front to the other end of the umbilical section. Switch to the Right view, and make sure the umbilical section intersects the rear in the middle of the central sphere, and the front section is centred on the other end of the umbilical section.