[Reaversword]

Exist some node/way for blend normal and bump mapping maps without need of create a single map with the complete detail?

[Mihnea Balta]

You can add several BSDF components to a layer and assign a different bump or normal map to each, but the results may not be what you expect.

[Reaversword]

So then, better use xnormal for mix it, right?