Is there a way for me to view my net-flow sources by city address rather then node names? its pretty hard to have a noc view when you can only see the node name.
this is something not available yet. It will be a Feature request.
How about IP grous, does it makes sense to you to create IP groups for such purpose?
Possible but not 100% sure if it can suffice what you are expecting to show it up. You can try to put some IP address groups and see what is the result.