If a copy of the angled edges were to be shifted a tiny amount to the right and up, then the edges that are angled with the top to the left, like a backslash, would stay separated from the copied edges.
The edges angled with the top to the right, like a forward slash, could still interact with the copied edges.
Do you think that sort of technique might help?
I haven't worked with a situation like that before. Maybe someone else could offer alternative ideas?
Thanks for the suggestion.. It has helped me in differentiating 45 and 135 angled edges.