|Active button||Disabled button (only shown on hover)|
- There is a button underneath every IP address - Show all N users on this IP
- The button is blue when there are users using this IP that are not already in the table
- The button is gray if all the users using this IP are in the table already
- The disabled button is only shown on hovering over the IP cell
- There is a message on hover telling them why it's disabled - All users on this IP are already in the table
- On click, all the other users from the same IP are added to the table.