I have a reading list app where the books are grouped by Author. So at the top level, the user clicks on an author and views the books by that author. When I originally set up the app, if the user was within the list for a particular author and clicked on the “Add” button, the Author field of the form was populated with the name of that particular Author. However, that functionality seems to have stopped working. Is there a way to set it up so that this functionality works again?