It would be awesome if we could place dirt/stone/clay/other.
my main issue is not being able to get rid of these:
but it would be nice to build hills and such to be able to make awesome looking things.
If this is already a thing and i am just stupid please tell me 
This is not a thing (yet), but it is planned since the beginning. There will be the whole class for that.
You can sometimes see her on the loading screens.
At the Moment the best option for custom terrain is just to use the mod Bellow.
sorry I couldnāt be of more help 
