RS Shader switch and selection tags


Hi everyone!
I have a huge 3D-model with 20 materials each with a selection tag. I am using Redshift. The model is one single object.
I would like to combine these materials into a single one using a shader switch. Is it possible to do that? I am familier with doing that with multiple objects using objectID, like a card deck for example. But in this case it is one object with many selection tags.



Wouldn’t bake the object / material would combine it into one shader?