Evaluate air pressure Facade (kangaroo)

Hi, I’m very new at gh.
I have this pressure simulation in Kangaroo, but I would like to also simulate the gravity in the component and how “should” curve if I fix the top and bottom points.

Second question, is possible to add after to that simulation a tension rod and how this is affecting the system? which component in Kangaroo should I use?

Pneumatic Simulation.gh (61.2 KB)