Learn how to import a custom texture set into Quixel Megascans, create a layered detailed surface and more.
To reduce draw calls from the engine you should ideally made an instanced material from this using parameters so that you have the ability to use multiple variations of your material with different specularity, normal strength or any other parameter based changes that may need to different over multiple similar yet different materials (think different colored tiles for example in different areas of a level).