I need to add multiple editors of a report. Zotero offers the series editor field, that I filled in yet, but I have also to add 4 specific report editors.

I know in extra field family and given names needs to be separated by two vertical bars. How about different people?

I tried everything came to my mind:
1) Editor: Dell'Acqua || Alberto, Morri || Giacomo, Quaini || Enrico, Airoldi || Angela
2) Editor: Dell'Acqua || Alberto; Morri || Giacomo; Quaini || Enrico; Airoldi || Angela
3) Editor: Dell'Acqua || Alberto
Morri || Giacomo
Quaini || Enrico
Airoldi || Angela
4) Editor: Dell'Acqua || Alberto || Morri || Giacomo || Quaini || Enrico || Airoldi || Angela
... but they didn't work as I need.

How can I do it right?