I am trying to figure out a way to use wire solver pin constraints stick to the cable ends even if I change the resample values or bridge leg counts.. I thought apply relationships is the right approach. However, I have this issue.

I have my bridge setup only from one curve. transformed, and mid cables are created with an add node, got groups designates end points of these nodes, etc etc, but I seem to loose the end point groups after adding add nodes …

Problem I am trying to solve is how to carry, or copy the group points to the end of the line just before the DOP IMPORT so I can use these points as Constrain Points, even after new points are created ude to new size of my bridge,

Sample file below…

Or basically is there a way to use wires, tension map to create snapping points….