What feature do you want to see added?

If possible it should have this kind of "U" shape when you use the brush and you would have parameters to change how deep and how wide the U can be stretched.

Also it would be great to have this vanilla mesa biom terracotta pattern if that is possible to do optionally too.

Are there any alternatives?

Doing that with FAWE is very much work compared to this and you would have to paint with layers too. I used a modified BetterGoPaint feature to do that. Placing by hand might take way too long if you are building huge maps.

Anything else?

No response