[SOLVED] 3d model settings for cloth simulation

Hey, I am trying to implement soft body cloth simulation using the demo project made by @ray but having few issues with the model. I read the blog post but there were not many details of the settings we should make on 3d model before importing it to playcanvas.
So is there a specific setting made for the models that have soft body or what? Because on checking the demo project, the character material has some extra attributes like skinInstance etc in the image below while a normal material has this attribute as null.

Any guess what should I add in my 3d model before importing it to playcanvas?