for my data model I need a bidirectional one-to-one relationship. Creating a one-to-one relationship is easy, but how to get it bidirectional ? Can this be defined inside the Data Modeler or can I add something to the Aurelius Export script section to add it ?
A one-to-one relationship, in Aurelius, is simply a regular many-valued association that happens to have only one item in the list. So you would create it the same way as you create a many-to-one relationship.