literally just search google for “how to create alternate data streams” and there’s a million articles and videos showing it in detail, 99% of which are from Windows machines.
I don’t mean this in a rude/insulting way, but why wouldn’t you just try googling that first instead of writing a post on here and waiting for replies? From your original post and the site you linked to, you already know these things are called alternate data streams. So just google how to create them and you’ll find step by step guides explaining it. Same applies to pretty much everything you want to learn about this kind of stuff, so its a good habit to get into