Basic Kangaroo Question - Perforated Mesh

Hi - I’m getting my feet wet with kangaroo through video tutorials online. I’ve watched several basic videos that show how to create a stretched, uniform mesh. My question is: is it just as easy to do this with a mesh that has a hole in it? I’ve tried myself and run into some problems. Let me know if you guys have a video or a forum that would be helpful. My ultimate goal is to create a perforated mesh and see how the surface/holes change when stretched/pulled etc.

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