This time we need to add the service document first.

Add a property called Configurations with Child Documents Macro as value.

Note that for this example we do not add a hide control, so the property will be shown, once a configuration has been added.

Next add the Document Properties Supplier From Documents Macro to a section of the service document. Point the Properties parameter to the Configurations property on the same page by leaving the Documents parameter empty.

Save the page!