Minion should detect both NA and EU addon folders and they should show up
separately on the game list on the left side. You'll need to install the addons under each game on the list to the left separately. Then you can enable auto-update under options for each game too.
Minion handles NA and EU as separate games. So you need to click the game on the left, do your business then click the next game on the list and do your business again.
If you are still having trouble can you please post your minion.xml and log files?
http://www.esoui.com/forums/showthread.php?t=236
Thanks
