Are you talking about Generic relations and the creation of individual entries between items from the related code tables? If so the answer is no. There is an item type in the DE for them but it is very unclear from the label descriptors which attribute you should use. I think the expectation is that you would supply the OID of the code entries but this is not an easily acheivable task. I have had to all of these by hand (sometimes a couple of days).
This should be fixed up or clear instructions supplied on how to do this.