Add a group called "None" to the Paid seats group, right now we have no way to know if someone is in that group

Our instance uses paid seat groups,

We have 93 paid seats, and the Account>Billing page shows 80 / 93 in use.

However that is not the accurate picture.

If you go to the Users page, you can see 13 others assignged to "None" 

So we have no ilcenses to spare, 

This would be easily solved if the Account > Billing page would somehow show the "None" as 13.