I downloaded a material pack from blendermarket and after mixing 2 materials (worn out edges) I tried to add scratches and dents, but the Materials I bought are not having a slot for adding normal maps. I will attach a photo of the node tree of the material. Thanks in advance :)
Edit:
I am aware how to add normal maps to a normal material that is managed by a Princ BSDF but this bought material has no slot and when I add another material to mix it with mine it overtakes the color, so I know I must be just some clicks away from a solution, but I can't figure it out...




