how can i create new 3db files? I have tried editing the other files by changing the textures and the fienames, and although this works, it also changes the graphic of the old 3db file to my new graphic, e.g. if i copy the file commod_chemicals.3db, and change it in utf editor to display my picture, then rename the copy of the file to commod_mycommod.3db, although the file commod_mycommod displays the picture, the files using commod_chemicals also use the same picture, why is this and how can i create any entirely new 3db files?