HELP with Kangaroo

Hello, 

I need a bit of help. I have managed to make a spider web with spheres that simulate water drops. Now, I need to somehow deform the spider web with the ¨weight¨ of the water drops. The idea is that the bigger spheres weigh more and therefore cause the spiderweb to go down more than the smaller spheres which weigh less (and therefore cause the spiderweb to go down less). In other words, the drops weight makes the spiderweb deform downwards (supposing that the one created in 2D now is horizontal, gravity would make the spiderweb deform on the z plane downwards). 

I have been told that this can be done with the plugin Kangaroo. I have downloaded it, but have no idea how to use it. Could somebody please help me? Thank you so much

modelos%20arana.gh