This is a Shader Nodes for the Blender Shader Editor and allows you to mix multiple detail normal maps to a existing base normal map. This allows you to shade your models with high detail and realism without the need to use UDIMs or super high res textures. As it works with normal maps, it also means that you will not gonna need to use a fine displacement with a super high high resolution model to achieve a higher surface detail. The shader nodes also let you use the alpha channel of the normal map to control the roughness, metalness, specular and sub surface scattering.

You can change not only the normal, but the roughness, specular, color... everything you need to make those textures mix seamlessly to your artworks.

You can mix multiple detail normal maps and use a different texture for each part of your mesh

This product already comes with 35 detail normal maps with a matching grunge alpha that allows you to use the given shader nodes to modify the roughness and the other described channels.

https://blendermarket.com/products/procedural-generator-bundle