I have tryed the splitting in UVmapper with a tudor-wallsection wich i had textured in truespace and converted to obj in 3dexploration. All textures wich i had scaled in truespace where on the splitted objekt but not scaled on the wall and frame- sections. If you use the 3dexploration you can oben the materials of the new objekt and scale the textures of each material again .Thereafter its perfekt !!!!