Authors in exported Abstract PDF

Dear Indico Community team,
I am curious whether it is possible to relocate the authors in exported PDF. For now they are at the bottom of abstract, I was wondering whether it is possible to relocate them right after the title?
Also, in exported PDF there are mentioned Primary authors. What is meant by this?
Thank you.

a) Changing the layout is possible if you modify the latex template in the source (that can only be done globally).

b) During abstract submission one can give primary and secondary authors. Some scientfic communities do make a distinction between primary and secondary authors on there degree of contribution to the text, especially for topics with many authors ( some astronomy papers have a few thousand authors!)