Emissive Skin Effects

Suggestions and advice are more than welcome
Here is where my material is at the moment


Here is the result

How can I copy the same material for the skin as I would another layer and add a glow specific map?
Or Do I need to modify the skin bust material and create a specific emissive tab in there and apply the textures inside of there instead of trying to do a new layer?

My goal is to use a blueprint to have the skin glow on and off.