How do I get coasters to interact with the terrain?

[LastJedi]

How do I get coasters or flat rides to interact with the terrain or pathways? I cannot seem to find out how I can have the coaster, railroad, raceway, whatever to be underneath the terrain. I don't see an option for it anywhere in the settings. Can someone show me? That would be much appreciated!

 

[Bitter Jeweler]

Turn on "Auto Tunnel" in the options on the right side of the builder menu?

Turn off collision in the main settings menu?

 

[HeatherG]

if u exactly what he says land will rise around it and over it . its, for me, my favorite things to do . they give great tools. definitely go in the setting and flip the switch for collisions. the game had that set as default.