author display fields

Ver X4 Win XP. How do I show more than 1 author in the author display flield? (see attachment) Inserting secondary and tertiery author fields gives me nothing

Select the “Display all authors in the Author field” option which is located by going to the toolbar and selecting: EDIT, PREFERENCES, DISPLAY FIELDS (see image). 


Thanks. Iknew it was somewhere but it was too obvious

FYI the fields secondary and tertiary authors are used for specific reference types for specific kinds of authorship. For example, a book chapter has authors, and the book itself has an Editor.  the editor field is the generic secondary author field.  Tertiary author field might be the translator, for example.