Where does one tell a texture to tile?
If you have the Beta, the Decals are now containers for one or more Images. If you click on one of those Images (by opening the “Images” folder in the PWS) your Property dialog will list (among other items) a section labelled “Tile” (or something like that) with an “X” field and a “Y” field. These are the number of times the texture will be repeated in a single stamping of the decal. You should decal the entire area over which you want the tiles to be spread. You should probably flatten your model, although it will depend on what type of visual effect you want.
