I was watching one of John Fallahee's LearnLogos training videos where he created headers for his prioritization list. However, he had to use a workaround to do this by creating empty personal books with titles like === BIBLE === and ===COMMENTARIES === and then adding them to the list.
This seems like a lot of trouble for something that should be an included feature.
So...Faithlife....please add this ability to L7.
Screenshot from John's video:
