Cornelius Cretu
Hi David, You can add 4 more sockets to that circuit if you wire the new sockets within the existing ring. It doesn't matter where you break into the circuit as long as you keep the same topology of the circuit, which is usually a ring. You have to also take into account the total load of the circuit and assess if it can take further alterations. Regards, This is definitely a job only an electrician can do.