Multi Author Posts

Can single WIX Blog posts be edited by more than one author?

Can single WIX Group posts be edited by more than one author?

I would like to allow my users to edit posts in a similar way to google docs. No tracking, just multi author editing. Post can be locked to a single editor until published. Inline comments that are visually linked to text or areas in a post would also be great. No need for tracking changes. This is similar to collaborating on Site Authoring already available, but I am talking about Blog and Group Posts collaboration by my users.