You can add a new person with the name "Onyebuchi, Theophilius Okonkwo Okegbe | Ezelibe Chizoba Paulinus | Okoye Henry", or you can "Onyebuchi, Theophilius Okonkwo Okegbe | Ezelibe Chizoba Paulinus | Okoye Henry" with a person entry that is so far only been referred to by another name (such as a former name or an alias name).