ah ok… it appears to work, although I disabled the author profile pages since I’m using BuddyPress and created a special Buddypress page in their profiles with a list of all of co-authored posts (excluding certain post types). I need to think of a way to customize that list into a feed. Some posts belonging to certain post types are excluded (like… I don’t need to list wordpress pages and other content). Any advices on how to achieve that? Thank you!
You’ll want to modify the query for the feed. Try checking out the ‘pre_get_posts‘. Basically, you just want to modify the main query object for the feed to also include all of the coauthors posts. You can access these easily because coauthors uses the ‘author’ taxonomy and the user_login is the slug.