How can I generate new group objects without affecting objects already created?

Hi there. Here on the forum I found this project by R0J0hound: dropbox.com/s/p9fdgbpk59dvc4h/verlet_4.capx

This project creates a rope from tying together generated objects. Now, I'm trying to be able to generate and launch (by a click) more ropes that will stay hanging from the ceiling, but the problem is that the previously generated objects (with previous ropes) start interacting with the objects in the newly created rope. How could I generate new ropes without affecting the ones already created? (If that is possible in C3)

Here is my edited project:

dropbox.com/s/djuzprlgpdcpl8p/Rope%20Project%20e3%20v2.c3p

And when I press C to get a new rope, the old one interacts with the new one, I know I'm doing something wrong, but I'm trying to figure out what.

I'm just trying to get a new rope every time I press C without affecting the existing one.

Thank you very much for your time and help.