In order to create a test scenario, you need to first create a Collection to place the Scenario in.

Do the following:

1. Click on Builder
2. On the top tight, click on the + icon and select New Collection
3. Give the Collection a name and press Enter
4. Next to the collection name, click on the + icon and select New Scenario
5. Give the Scenario a name and press Enter

You have now created a scenario. All you need to do now is to add you test steps (see chapter Add test steps to scenario)