With digging or filling soil you can even out the ground a bit ;)

not sure flatning is possible right now even with mod as you can't pile up similar types of orders on a single entity at teh moment tehrefor it's not possile to chain pilling or digging requests to even out large surfaces. and that's not taking into account when there's no change in the type of digging needed (going from digging to mining)

Originally posted by gee_simps:

Being able to flatten the ground would be a nice touch as well.

Originally posted by gillian.c:

not sure flatning is possible right now

Flattening and levelling is entirely possible! ;)
Sure, it isn't possible as a clickable automatic land deformation, but then that's what you have Sapiens for ;)
One of the driving principles the developer is aiming for with his game is to have the Sapiens build everything. So, if you want something flattened, you get them to do it!
For example...
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2975058614
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2975058972
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2975059220
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2975060326

Originally posted by Aglarele:

With digging or filling soil you can even out the ground a bit ;)

Quite a lot actually ;p