I have a content type proposal. Now I would like to have multiple co-authors of the node. I want to give the author the opportunity to add users like this:
The users have to be entity references. I know there is a module Node access user reference but how can I have a collection of entity references that bundles the "co-authors". The module doesn't work with Field Collection module.
Has anyone encountered this and is there a module for this or a simple solution?