https://www.esoui.com/downloads/info...ItemSaver.html
I think ItemSaver does what you want.
https://www.esoui.com/downloads/info...5-Updated.html
Or similar: Dressing room marks sets in your inventory that you saved in loadouts.
Edit: Oh.. just saw that you wanted to make a suggestion for item set browser. Wrong thread then. Use the comment section in
https://www.esoui.com/downloads/info...etBrowser.html