I saw a post from a year ago that didn't get an traction and to be honest while I've had an account here I have not used Roll20 until now. What I would like to have on the map is a tool that you could use to select certain areas of a map as difficult terrain. I envision this to be much like the dynamic lighting tool. Draw around the area that is considered difficult terrain and everything within that space is considered difficult terrain. The purpose for allocating the space as difficult would mean that when you use the measuring tool it would take into account that terrain and adjust the measurement. If you'd like this to be considered please vote. Cheers V