Hi, thanks for the idea!
Unfortunately I didn't find an easy way to do this
Do you think it would be possible to increase the largest brush size?
Right now its something like 16 x 16.
How would I go about increasing that and then simply lower the entire map at once?
Edit: I have found the following two variables that in my opinion have something to do with the brush size:
le_brush "X" (Where X is probably the brush selected)
xr_brushradius "X" (Where X should be the size of the brush)
I didn't have any luck modifying the radius value, it seems to do nothing at all
Edit 2: I was easily able to change one brush's TGA to a full square, so now at least I have a completely square brush and can do a grid by grid lowering of terrain.
The brush size itself I believe is hardcoded in and I have so far not found a way to modify it...