This is actually a filter of orders by client and which can be made from the list of orders. Yet, as Elements treats these objects as being related to each other, it will show the necessary links in the context menu of each record. Linked objects are identified by the platform automatically using the relations declared in the definition of the objects – when the object Orders had been defined, we declared that it had the “Client” property, which in practice uses the object Clients to limit the number of valid values. In the database this corresponds to a foreign key, while in the interface this is a new field (control) with a limited number of options (ComboBox, ListBox or ObjectPicker).