I was just playing around with this yesterday. C2 has no built in path tool, so you have to go at it with raw math.
Here's what I have so far. I'll warn you, it's quite crude:
I'm sure I could smooth the paths out with a little more work; the main problem is that, with lots of paths, this would become a nightmare to make sense of in layout view. Add a few more paths and it starts to look like your level is sprouting warts.
Thankfully, I don't need this in any of my current projects. I think I'll wait for a proper path plugin.