I've searched high and low in docs and the forums, but I still can't figure out how to do it. I have a net named USB_M and a net named USB_P, both of class 0. The best I've figured out how to do is put a meander in one side, and even still that doesn't work because when I try to meander close-together traces, one INVARIABLY tries to overlap the other.
So how am I SUPPOSED to route a diff pair?