Select Posts by Author? [DK-PDF Generator]

Crossposted from: https://codecanyon.net/item/dk-pdf-generator/13530581/comments?page=5&filter=all#comment_19361730

Hi, PreSale question: DK PDF Generator looks great, but I want to check the functionality before buying. I need to create a PDF of all posts by a single Author, and have posts sorted chronologically.

Is that possible? I see categories and date ranges in the demo but not author.

If not, does the licence allow modification?

Many Thanks,

Dave