You can add a new person with the name "Célestin, Agbor Vivan Ada | Mpoche Kizitus Nformi | Atenga Thomas Ireneé | Nana", or you can "Célestin, Agbor Vivan Ada | Mpoche Kizitus Nformi | Atenga Thomas Ireneé | Nana" with a person entry that is so far only been referred to by another name (such as a former name or an alias name).