Question regarding connecting objects with cables.

Hi, I am a new user of Kangaroo 2. Could you please help me with a question I met?

I was trying to connect all spheres with rubble cables so that they will move towards each other and form a stack of balls. I have dug through kangaroo 2's sample files but was not able to find a method to connect the lines with the rigid bodies wiles still allowing balls to move.

Could you please help me?

Thank you.