If you're just trying to change "," to ";" then you can use the search and replace feature in the Tools menu.
If it's more than that, the Additional Tagging and Reporting Tools plugin can probably help.
You made me really laugh hard and so amazed
, this app has really much options, settings and tools, i did not notice this one you have mentioned, i was looking in the Preferences. a plugin would be ok as well for auto rename at importing music files to MB.
Thanks alot psychoadept
This MusicBee is the best