Collaboration Option

Is there, or will there, be any options to allow someone to join you account, like a friend/supporter. They are can have reading access and features to comment on the work. I think of a friend who is writing and being able to come in and see their progress and comments on sections they are writing or have written. This would be great. But of course not being able to edit their work unless there feature was turned on but the Alhora user first. I know you have the Publishers licence options but I am thinking of something less formal, just a way for a few people the support the author i.e. a collaboration. Just a thought James. Thank you as always.