Add multiple Contacts to the Conact Roles list

Add multiple Contacts to the Conact Roles list

How do I add more than one Contact to the Contact Roles list when viewing a Potentials record?

There is a Contact Name field in the Potential Information section of the record for adding the first Contact. It seems like I should be able to add additional Contacts under the Contact Roles detail section, but the only options are Add Contact Roles and Edit All.

I can create a new Contact by selecting New, but there is no option to add additional Contacts that were previously created.