Tunnel question

Hey guys this is my first post and I've only had NL2 for about a week. I used RCT3 for many years and just found out about NL2 and couldn't wait to get it. I have a question regarding tunnels tho. I can make tunnels no problem but what I would like to know is if there is a way to have the entrance and exit of the tunnel conform to the terrain so there isn't a big tube coming out of the ground? If you're going straight in and straight out it's not a problem but any angle and there's always a large portion of the tunnel showing.
I want to have the ends of the tunnels flat with the ground. Is this possible without building custom tunnels?

unfortunately, its like that, and that's the way it is.

you can change the ground to fit the tunnel.