Shambler - my mistake. I clearly remember EntityAlpha and some other commands didn't work with loaded B3D, some time ago. Now I just tested EntityAlpha and it works.
I guess this depends on the App that was used to export the mesh. May have something to do with missing normals. Fact is: A map mesh that was exported in Maplet/Decorator was imported in giles. I then added some stuff that was made in 3dsMax, with standard normals/smoothing. After exporting the lightmapped result in giles, the maplet/decorator parts of the mesh don't show any diffrence when I toggle FX 1/0, only the parts that I added from 3dsMax show the diffrence (for some reason even after adding an UpdateNormals).
I guess this depends on the App that was used to export the mesh. May have something to do with missing normals. Fact is: A map mesh that was exported in Maplet/Decorator was imported in giles. I then added some stuff that was made in 3dsMax, with standard normals/smoothing. After exporting the lightmapped result in giles, the maplet/decorator parts of the mesh don't show any diffrence when I toggle FX 1/0, only the parts that I added from 3dsMax show the diffrence (for some reason even after adding an UpdateNormals).