Terrain Group Configuration

CreateTerrainGroup(string name)
Multiple (at least one required)
name: Name of the terrain group to create.

BaseType(string name, string surface, string asset = name)
Required

AddType(string name, string surface, string asset = name)
Multiple

Arguments
name : The name of the terrain type
surface : The name of the surface type placed by this type
asset: The optional asset name. (create a new type using existing assets but place a different surface type)

Weight(integer blend, integer variation, float weight)
Multiple (optional)
blend: The blend to configure.
variation: The variation to configure.
weight: The weighting assigned to this variation (used when selecting random variations). Defaults to 1.0