To make previews edit LODs.ini. Change "FILE=LOD_INT.kn5" to "FILE=LOD_EXT.kn5", make your previews and then restore the file before attempting to go in game.
To make previews edit LODs.ini. Change "FILE=LOD_INT.kn5" to "FILE=LOD_EXT.kn5", make your previews and then restore the file before attempting to go in game.