List users not assigned to any group

Hi there!

I was wondering if NC has the ability of listing users who are not assigned to any group, from the ‘Users’ tab. I can see on the left every group with the count of users inside, but I miss an ‘Undefined’ group which show all users with no group assigned.
It would be useful when you have deleted a group and want to check what users have left without group.

Regards.