I think this is similar to my need. Possible an easier to consume example.
Currently, nested tags in graph are treated as a single tag. For example, there is no apparent difference between:
#Europe/Italy/Rome and #EuropeItalyRome
It would be helpful if the graph was hierarchical and branched at each sub-tag. This would allow a core tag in the graph of #Europe (with any general files on Europe connected). From there, the #Europe/Italy tag would connect to #Europe but contain files that are tagged #Europe/Italy. From #Europe/Italy the #Europe/Italy/Rome tag would be connected with its related files.