Master Detail without relationship single record REST Service

Summary:

Hi,

recently we studied the next articles/videos, because our customer want to show a parent record and child record information.

https://blogs.oracle.com/shay/post/showing-parentchild-in-a-single-table-in-visual-builder

https://blogs.oracle.com/shay/post/master-detail-on-a-single-page-with-a-single-rest-call

but the provider service doesn't have a single record version, for example we send a input parameter as the customer identification number and the result are different transactions (Parent) and their movements (Childs), in your videos you show that is possible the relationship if you select the single record, how is possible to customize it when doesn't have a only one record context?

Regards,