Tunnel Elevation

[BiFSXFan99]

Say I want a tunnel to go from an elevation of 0 to -1. How can I make the tunnel change elevation?

[Mariculous]

Hold ctrl and build the tunnel. That will create the tunnel portal only.
Switch to underground wiev.
Use the artificial slope tool on the tunnel tracks. This will create a slope in the tunnel
Connect the tracks under ground.
Done.

[BiFSXFan99]

Thank yooou!!