Simplify Combining normal maps

Combining normal maps is very useful. When combining, you can set one normal map as the bigger details, and other as smaller, and so on... But combining them properly in blender is currently overcomplicated. This explains the node setup needed: youtube.com/watch

There could be a dedicated node for that, or a mode for vector math "Normal map combine". It would just have two normal map inputs and spit out a combined normal map.