How to use physical material masks?

It seems like a very useful feature but I’m unable to retrieve the physical material. I’ve tried with static and skeletal meshes.

I’ve also tried the ShowFlag.PhysicalMaterialMasks cmd and it doesn’t show up at all. Do I need to enable a plugin? Is this for Chaos only?

I thought I could use this on a vehicle mesh to trigger different effects for glass and metal without having to use different materials.

Hi, I wanted to use them some time ago but there wasn’t much info about them and if I remember correctly, then I read somewhere that physical material masks where for chaos only and then I stopped looking further how to use them, since I didn’t want to use chaos at that point.

I think I came to the same conclusion… It’s a shame.