Gridshell Model

Hello everyone, I’ve been experimenting with grasshopper and looking for ways to make a grid shell model. As I’ve been researching I came across this video which is exactly how I need my model to look obviously with a different desired form but still keeping the standard double layer grid shell. Unfortunately the video does not provide instruction or show full in detail grasshopper commands so id really appreciate if someone could explain how to achieve this.
Link to the video - Grid shell Experiment 4 - YouTube
Thanks in advance