Vivlio Light (PocketBook Verse) - Managing co-authors

Is the Vivlio Light / PocketBook Verse able to handle co-authors individually?

To clarify, I've downloaded a few books authored by more than one person from the Vivlio shop to see how the e-reader handles this.

The authors of a book are for example listed as "Moussaïd Mehdi, Wozniak Jacek" in the e-reader (last names and first names are inverted but that's another issue). When I checked the Authors list in the device library, I expected to find an entry for "Moussaïd Mehdi" under "M", and another one for "Wozniak Jacek" under W. However there's only one entry under M for "Moussaïd Mehdi, Wozniak Jacek".

I then tried sending a books with multiple authors from Calibre to the device. This is what the content.opf of the book shows in Calibre:

In the Vivlio Light, the authors are listed as "Cixin Liu, Gwennael Gaffric". I don't have any plugboard handling authors so the PocketBook driver I'm using apparently replaces the & with a comma automatically. However, there is still only one entry for both authors under L as "Cixin Liu, Gwennael Gaffric".

Is there a way to make the Vivlio Light create separate entries for co-authors in the Authors list?