To add some clues:

home / family computers should not be restricted to home / family / student version (professional versions shall be allowed) IP address shall not be a criteria to differentiate computers: it is now quite current to have multi-homed, multi-stacks home computers but you still have NAT for IP V4.

Hope this helps.

If you allow to add multiple computers then this feature is getting more important because I can add the name of a person in front/behind the computer name.