2. well, that's not entirely correct. one can use the categories to faster build up maps, by only showing the currently needed tiles from one category. in fact i do this all the time because i have hundreds of tiles. i would very like it if i could better arrange this tiles within the category. (because sometimes one forgets to make special tiles, and when they are made, they have to be at the end of the category, this confuses and produces useless scrolling)