How to find out which material slot is used for current section selection in asset

Hey there,
I am trying to import some old Maya asset into Unreal Skeletal Mesh. While assigning material to different section of asset, I have to either highlight or isolate each material element until I find the section I want to work on. I saw there is a Section Selection button on Asset Window which enable user to select different parts of asset in asset view port, I am wondering if there is a way to find out which material element is current assigned to selected section?