Trying to do something

Hello, I don’t know why this had got me stuck, but I’ve forgotten how to do this.

I am trying to turn on “Simulate Physics” for the player whenever he touches a certain material / texture. I know how to make the simulate physics change, but I do not know how to make a mesh or texture the trigger… any ideas?

line trace for physical material then enable Simulate Physics

Player characters don’t simulate physics that I know if because they’re using movement component. They’d need to go rag doll first?