- There is a button underneath every username - Show all N IPs of this user
- The button is blue when there are IPs being used by this user that are not already in the table
- The button is gray if all the IPs used by the user are in the table already
- The disabled button is only shown on hovering over the username cell (similar to T244816)
- There is a message on hover telling them why it's disabled - All IPs being used by this user are already in the table
- On click, all the other IP records of the same username are added to the table.