I would like to suggest the following change to the measuring stick. At any point while dragging, pressing space will create a way point so that you can measure non-straight paths without having to split the measurement up. This way, to measure, for simplicity reasons a triangle, you don't have to measure 3 seperate times and then add the lengths, which can be a hinderance in game for character movment. Instead, you click once, drag, press space, drag, press space, and recieve the total length traveled in one go.