To add a scenario to your questions, click on the Add Scenario button below the question list. If you navigate to another screen prior to pressing the Create New Scenario button, any information entered on this screen will not be saved.
Typically when taking content, the scenario numbering is in the same order as to when the scenarios are displayed. Since question order can be randomized, the order of displayed scenarios is dependent on question order. Factors that contribute to scenario numbering are question randomization, question skipping, and restarting/resuming a test. For any session, all scenario numbering will be consistent. Thus (unless a test has been restarted/resumed), the assigned scenario number the test taker sees in a question while taking a test will be the same as when displayed on a final page.