Does anyone know if there is a possibility to modify the author name suggestion drop down list to show only full names and not surnames and full names?

Illustration: manual entry, start typing author name "kr" generates the following drop down list of suggestions:
"Krier"
"Krier, Léon"
"Kroll"
"Kroll, Lucien"
etc.

Which I would like to see reduced to:
"Krier, Léon"
"Kroll, Lucien"
etc.

(Using standalone version)

Thanks,
Sebastiaan