ok i downloaded nycta2007 route.i was really AMAZED finnaly a route than matches the NYC subway system.i love how how the lines start to go underground but there is land there.(the land is over the tracks.)is there to lower the land.THE whole area.i now how to make land go lower but is there a way that i can make the whole land go under.the reason is because i like to view the trains from outside.is there a way i can make the whole NYC area go under?