So, first I'd like to confirm that this is indeed a feature of the game, and not something fixable on my end. The edge scrolling works well mostly - it's fast, accurate, doesn't lag... BUT, it's disabled/doesn't work anywhere on the screen where there's a menu/UI. So, that's all of the bottom of the screen, the bottom left (where the emotions are), the top right (where the options and such are) and the top middle in build mode. I always play in full screen mode, and edge scrolling is so much more efficient than WASD or arrow keys. Just wondering if this is something someone could possibly mod, or if it's one of those impossible things (like modding a CASt; can't happen!) and I'm just going to have to get used to the edge scrolling not working on certain parts of the screen.