mapframes → add mapframe, click ok
type in project name to properties → name
type in project root dir to properties → output root folder. (this would be P:\prefix\tag_projectname)
click create subfolders button, click ok
copy your data ground texture rvmat's and paa's into <project>\data\ directory
copy your layers.cfg and maplegend.png files into <project>\source\ directory
set easting to 200000 and northing to 0
switch to samplers tab, setup properties according to your terrain (make sure texture layer is at least 2x your cell size)
switch to processing tab, use “…” button to browse into your source\layers.cfg file
click rebuild terrain button, click yes
click OK in bottom of mapframe properties dialog
save your project to Source\TerrainBuilder\ directory
file → import → terrains (xyz file)
file → import → satellite images (you can choose bmp or png)
file → import → satellite mask images (you can choose bmp or png)
layers manager do on all layers, click RMB → Terrain Coordinates & Properties, easting: 200000, northing: 0, also Size width/height
mapframes window → your project name → click RMB → properties (or double LMB click)
switch to processing tab, click rebuild terrain button, click yes
tick export satellite texture and surface mask (make sure 4 materials per cell is selected)
click generate layers button and wait until its done
click OK and save your project
convert layers\*.png to *.paa
Now your terrain is ready for viewing using terrain builder buldozer.