several options:
1. (the one I always do)...start with Junes ISO connectors and edit the scratch fields to change angles
set the top one to say red and bottom to black....change bottom weight to make thicker
set the top to dashed line
2. 2 connectors
group them
line them up
make one connect fixed smaller than the other aka width = guard(group.width*1 - 10mm)
one red...one black
3 individually place 2 connectors to your shapes
set one to be red and dashed
set other to be black and thicker perhaps
4 of course the custom line patterns (I never did this much)
5. could play with long thin rectangles (tedious and pretty much a kludge)
set fill pattern as needed....pick red and black
Like I said, 1) is what I use....June does some great work. You may spend a couple of days figuring out
what he did, why he did it, quirks with visio, etc....but once done, save to stencil and use at will in the future.
1) does have the advantage of precision control aka where you want the vertical leg of a "S" connector.