You cannot have a 2nd passenger door if you don't have the first one.
If you want the 2nd door to be the main passenger exit, it must be the 1st door in GSX, located in the position of the 2nd door of the airplane. The diagram there it's just an example, it doesn't have any relationship with the actual door locations, the only thing that controls the door location are its coordinates and doors must always start with the 1st one.
