If you change step 18.104.22.168 of the E2E XML Book Set Mixed Test Script to select the project in the tree not the model, the model deltas are not calculated. Proceed as the test script says until the last page. Change the model name to match the update model and check "update." Now hit "Next >" to go to the last page and notice there are no differences when there should be since the foreign keys are being added. If you click "Finish" nothing is updated. This is because if go back in the wizard after changing the model name, the "Foreign Keys" and "Indexes" checkboxes are now unselected. I did not have this problem when running the same kit under MS Windows.