Macro Variation function for landscape? Where is it?

Hi everyone,

I’m pretty new to Unreal and I’m working on tiled grass for a landscape for a school assignment. I’ve seen tutorials where they implement a macro variation function to reduce the tiling look. However, when I search for the macro, like I see in the tutorials, nothing comes up. It seems I don’t have it. Where would you get the function, and others like it? Is it a plugin or something?