I’m trying to build out a table like functionality from an Opportunity record, where the user can see Contacts assigned as Contact Roles against that Opportunity, and be able to create a new Contact and select the Contact Role and link it to the Opportunity.

Is this possible? What’s the best approach for this? I looked at having 2 models and using a Subquery, but couldn’t quite get it to work (as the Join Object only allowed me to select from the standard objects, not a model that I’ve created).

Thanks!