Users can add multiple titles to the Relates To section of an Ancillary title in PDX. This functionality allows the user to associate the same ancillary title to various titles in PDX, and give greater flexibility for users to allow multiple titles to be tied to the same ancillary title.
To do this, go to the Metadata tab on any Ancillary title:
At the bottom, in the Relates To: section, is where an user can add multiple titles to relate the Ancillary title to, by clicking Add New:
Then, select the title you want the ancillary to relate to, as well as set the Position number and any relevant territories (leaving it blank means it will relates to that title in all territories):
For more info on viewing all ancillary types related to a title, click here.