Constraints with distance limits (e.g. for ropes)

[barolfe]

I've been trying to more realistically model a "rope" for a rope + chain model of a boat anchoring (see: https://codepen.io/Bryan-Rolfe/pen/poYWLMr), but even if I add additional constraints between my chained bodies, with high stiffness, the rope can still stretch substantially.

Is there a way to model the constraints between bodies as something other than stiff springs (e.g. like an exponential), or or with defined stretch limits that prevent further separation between the bodies?

Are there any plans to implement such a feature or are there any work arounds?