I'm building a site that includes two node types, "scrapbook" and "press clipping". A user can create multiple scrapbooks which are either public or private, and they can also add press clippings to a public pool.
Each scrapbook includes an entity reference field that allows multiple press clippings to be referenced from each notebook. This works fine, but the only way I can add a reference from a notebook to a press clipping is by editing the scrapbook. I want to include a dropdown on each press clipping that allows the user to select one of the scrapbooks they have created and add the press clipping to that scrapbook.
What's the best way to achieve this result?