Hello. I like to have cave maps colored by altitude. I think color is an important piece of information, especially in plant layouts. As far as I know, Therion is able to color on scrap basis only. Because I also like to have the same color in the same piece of cave either in elevation and plant map, I usually split scraps at the same borders in both projections. This is quite cumbersome and time consuming. Also, there's no practical way to do such a split when trying to draw on a touch screen while hanging up from a rope.. So I'm proposing a solution: is it possible to split scraps offline based on altitude? I'm thinking about a script which takes a (series of) .th2 file as its input, and generates another .th2 file containing no scraps deeper than, say, M meters. Scraps with stations whose vertical distance exceeds M should be split in two or more scraps. Areas, lines and other symbols should be connected (if possible) across scraps. Using a script like that, one could push M around to zero and get a cave filled with something like a color gradient, which could be wonderful. Is that a crazy idea? ;-) Marco