Multiple layers of subcategories in Finder Editor

Since individual pieces of content are able to be catalogued under a Library and then potentially multiple layers of categories to organise them, it should be possible to utilise these subcategories in the finder Editor. For example, an existing piece of content could be an outlook guide catalogued under IT Help Guides > MS Office > MS Outlook, but the finder will only allow one layer of categorisation, meaning all the help guides will be lumped together in the IT Help Guides library when trying to find content.