URL path on dynamic pages created from external collection

Hello,
I have created a set of dynamic pages based on an external collection.
It seems only the ID can be chosen to be used as a path, despite the fact that other unique fields are available.

Would it be possible to add other fields or can I only make use of the ID in this scenario?

Thanks

Hello Rafæl :raised_hand_with_fingers_splayed:

Referenced fields cannot be used to build the URL of a dynamic page since their value is the ID of the entry that they represent in their original collection/database.

Ahmad