You can add a new person with the name "Daniel M. Sáez Rivera, Jorge Braga Riera, Marta Abuín González, Marta Guirao Ochoa, Beatriz Soto Aranda, Nava Maroto García", or you can "Daniel M. Sáez Rivera, Jorge Braga Riera, Marta Abuín González, Marta Guirao Ochoa, Beatriz Soto Aranda, Nava Maroto García" with a person entry that is so far only been referred to by another name (such as a former name or an alias name).