How hard is it to make tunnels for a track? I haven't figured it out yet. Is it possible to do with BTB?
Yeah, but if you use walls, I'd recommend to use a few wall pieces to keep it clean, otherwise you will have bit's hanging out everywhere.good to see you can make tunnels!
is it possible to make a tunnel through a hill? so there is land surrounding it, that you can then have the track curve back around and go over the hill?
Yes you can - Take a look at my fantasy track - Elbonia Stage 1......like make the track go down inside a hill