There needs to be a way of viewing all the 'adhoc' user created tags in REX. If staff leave and you want to re-assign tags to others and they haven't used the system tags, you need to search for the various tags that were created by the user.

There needs to be another admin section that shows all user created tags that can be filtered.

Eg (SETTINGS -> CUSTOM VALUES, TAGS & MAILING LISTS)
Value Lists
System Tags
Mailing Lists
User Tags (New option) - displays all user created 'adhoc' tags

It also gives more visibility to the admins as to how staff are using the tagging.