Highlight where a material is assigned on the model

Some stupid thing, I have a single mesh with different materials assigned on different elements, is possible to select the material in the Content Browser and highlight where he is on the model?

I want to reassign some materials that are wrongly assigned but some of them are similar and can’t understand what to assign where.

If you inspect the mesh (double click in the Content Browser), you should be able to see materials slots, you can Highlight / Isolate them there. I hope I understood you right.

Is there a way to control the visibility of the material using blueprints?

Yes. Look into dynamic material instances.