I like to make plan and extended sections colored by altitude because this is a way to add a "3rd dimension" to a plan drawing. I also like to have the same color in the same cave region either in plan and extended section. This way makes very easy to identify same portions of a cave in both projections.

Because Therion colors on scrap basis, I'm forced to draw plan and extended section using the same scrap subdivision. This is a very complex operation and it's not always simple to have the same scrap structure in both projections.

Is there a way or a trick to color by altitude, maybe defining an "altitude step" to change colors?

Thanks,

Marco