Golden Arrow in SAP Crystal Reports

In SAP Business One, there’s a term called “Golden Arrow“. It refers to a link between documents or master data. For example, on Sales Order document, there’s always a reference field for every item code on the details of that transaction. You can use this model in crystal report, so the report result will have same functionality with SAP’s Golden Arrow. To be able to do this, crystal report reference must have a code or primary key of master data or transaction document that you need to show in reports. For example, if you want to have reference to Item