EP Mask in taxonomies- how does it work?

I'm trying to create an interface through which users can take notes in a gravity form that show up as posts they can edit later. I'd like each user to have a page that contains all of their notes (posts). Since the notes will be the only posts the users have, I think Custompress should be able to display a page with all of one author's posts. I am looking at a new feature of Custompress that isn't in the manual- EP Masks. I can't find a resource to describe this function to me, but maybe it can solve my problem?

Thanks in advance!