If you hover over material name in the model browser tree, it will highlight all the elements and geometries that have this material assigned. Additionally, if you RMB on a Part name in the model browser and select "Properties", you can see a list of all materials assigned to elements/geometries in the selected Part.
If you hover over material name in the model browser tree, it will highlight all the elements and geometries that have this material assigned. Additionally, if you RMB on a Part name in the model browser and select "Properties", you can see a list of all materials assigned to elements/geometries in the selected Part.