Linking two editions > Likes and Comments

Both the paperback and eBook are in the Goodreads database, but only one of them shows up in the Author Dashboard. How do I link the two so that the reviews show up for both editions?
Thanks very much.

This request does not involve the adding of new books/new editions to the Goodreads database, so it is in the wrong folder..
See Where should I put my request? (folder overview)

Please MOVE your topic to the correct folder Book & Author Page Issues by clicking the (EDIT) button next to the topic's title and picking the target folder from the pulldown list (only available for desktop/laptop, not in the app).

Done.