@nprofile1q... By the way, I had to animate one of these chains and figure out how to get it to interact with colliders, and I found a pretty decent solution that I thought I'd share:

Basically, instead of using a bunch of connected edges as the base, I used a ribbon so collisions would work - basically an extruded edge.

So I set up the ribbon by using an extruded spline, then added an extra edge loop right down the middle of it...