Hi all.Landclass file priority can be controlled by placing them in individual Scenery project folders. Within the same folder, the priority would be controlled by alpha-numeric order, with zzz.bgl being loaded on top of aaa.bgl All landclasses have an LOD of 5. The worldlc.bgl, in the main 'Scenery' folder, always gets executed first.With the advent of transparency value, this allows a city landclass to be placed over a vegetation landclass... why? Because resample arbitrarily will reject cities while interpolating data. And the cities and towns should have greater priority. This allows us to layer landclasses in the same 'project/scenery' folder.A texture folder may be used as a twin to the scenery folder in a project. But it either will need all the landclass textures called by the bgl, or all the default textures ( in .../Scendb/world/texture )need to be copied to the MAIN "Texture" folder, so any missing textures will be picked up there.Generally speaking, we make our addon landclasses as single LOD5 areas, so there seldom would be a need to worry over priority.Dick

but do they work in fs2004?