Comment 13 for bug 1577958

Without this tool it is challenging to route impedance controlled traces -- and even more difficult to route differential pairs of impedance controlled traces (e.g. USB). I need them to curve gently enough to not radiate at corners, to be similar enough in length to work properly, and to maintain distance from one another to achieve a specified impedance.

Usually in EagleCAD I would simply route them as a differential trace after configuring the netlist rules to space them the correct distance from each other and the neighboring ground plane, I'm not sure where I'd even start if I had to route them as a collection of line segments.