List of assigned directories

this request is similar to "Projects - directory-centric view"

It would be nice if it would be possible to see a list of virtual root directories in use on the server, and which users have access to those

In a 1 User : 1 Directory constellation that would not be necessary, but if users have multiple directories assigned either directly or via group(s) (in the future?) that can come in very handy!

Something like "Folders" at the User Management screen:

with a filter option as well, i could search for 'support' and see the three users having access to that folder