Based on a support request:
I use Landscape Builder to post process RWT generated terrains. Not sure if you are familiar with LB but its a bit like photoshop for terrains. I can import a bunch of terrains and add additional layers like some noise, lower, raise, smooth etc.
LB needs terrains like this
[3][6][9]
[2][5][8]
[1][4][7]but RWT generates them like this:
[7][8][9]
[4][5][6]
[1][2][3]if its not too hard to change would it be possible to generate the terrains in that order?
Maybe this will be useful for someone, so I will post the solution here (attached).
Import the script into Editor folder, and select "Window / Infinity Code / Real World Terrain / Tools / Sort Terrains For Landscape Builder".