emadm You can work multiple tags separate When you add a discussion, you can select the tags from a list and select the other tags from another list separate Can be viewed Discussions via multiple tags from the Two lists
luceos Not sure what you're aiming for specifically, but you can already allow one or more primary tags and zero or more secondary ones. Why split the selection up, that only confuses the user.
emadm luceos It is meant to be another addition Tags Topics shared between the two add-ons can be viewed
