I would like to add a texture that makes parts of my actor invisible, or not render, or something. So far I've tried using an all black texture, and all white texture, and a textureset with nothing at all in it. None are doing what I need (although they all do something) which is to make the things I'm adding it to invisible.

there is a "Null texture" (or somthing with a close name) in the list. The object is invisible if you are using it

Lol, I tried looking a Clear, Invisible, DIsabled, etc. but never Null.
Thanks!