I'd like to have the edge scrolling (move mouse to the screen edge to scroll the area) a selectable toggle in the settings. I personally prefer to use the keys (which you can currently do), but am frustrated by how often I accidentally scroll the screen (especially if you are playing in windowed mode, and are trying to move the cursor down to the taskbar to check mail or something!
Again, just the option to turn edge scrolling off... Not suggesting it get removed, as I know others prefer using it rather than keys.