I am trying to install a tunnel on my route and am not having any luck doing so. I am using TS12 Build #47059. I am using a single track "Concrete track N25 2m" kuid:118606:100325 and am trying to connect to Tunnel, "Tunnel 1 track tehachapi Loop Style" kuid2:39134:102014:1. I have made my hill and layed track on each side of the hill and then layed the tunnel through the hill and connected the track on each side of the hill. There is no opening for the tunnel after doing this. I am probably not doing it right as this is the first time I have tried to use a tunnel. I sure do need some help on this. Any help will be very appreciated.....