[igorius]

I have some books of a serie which are from an author and sometimes from the same author in conjunction with other author and sometimes from different authors:

John Doe - Serie 01 - Book Title X
John Doe & Frank Duh - Serie 02 - Book Title Y
Frank Duh - Serie 03 - Book Title Z

I understand that for the 3rd book that it will be exported by Frank Duh and not John Doe, but for the first 2 books i want to get the export like this:
/Exported Books/John Doe/Serie/John Doe - Serie 01 - Book Title X
/Exported Books/John Doe/Serie/John Doe & Frank Duh - Serie 02 - Book Title Y

So i want to get a folder with the first author of the Authors...
I tried with {first_author}, but it always exports with both author names.