Preset materials and nodes?

ArmorPaint
1

I wonder if added preset materials just by using nodes to create default materials, textures, and brushes. Meaning premade node trees or custom with out need to redo or rework every time to save time work. I see plugin but it not easy to create if not much docs. Unless I miss some on the links.

Examples material:
Human skin
Metal
Plastics
Clothing

Brush:
Paint brush
Ink

2

you can create any of those things in a blender file and then use Append to bring them into your current project.