There are two ways of deleting a scenario:
1. To delete a single scenario, click on the

button that is located in the same row as the scenario you wish to delete. If the scenario is unlocked, it will get deleted after you select 'Yes' in the confirmation popup window.
2. To delete two or more scenarios, select them by clicking on the checkbox (to the left of each scenario). You will see that the

button at the top of the scenario list will turn orange to activate it. Click on this button to continue.
If any of your scenarios are locked - you will not be able to delete them.
If any of the scenarios you wish to delete are currently used in any report, you will see a blue message, above the scenario list, warning you that, by deleting the scenario, you will also be deleting the report.
Click yes to confirm deletion of the scenario/s and the associated reports.