Do you mean a rope ladder that actually flexes and acts like a rope ladder, or would you be happy with just a static ladder that had the appearance of rope? If the latter, that’s completely doable with this system - just swap out the strut and rung meshes for rope, maybe tell it to use rope-knots instead of bolts.
I’ve submitted this, although it’s not 100% ready yet, should be by the time it gets voted on (if it does).