Star box – author under categories

Hi,
I’ve got a problem with starbox.
We have different authors for the blog. I want to show them under the categories and not only in the topic they wrote.
I chose the option ” show the author in the global feed” but no there is under each categorie only one author under every topic and not different authors. That woud be correct.

http://blog.ehorses.de/category/tipps-und-tutorials/

Can you help us? Or my i contact starbox directly?

https://wordpress.org/plugins/starbox/