You can extend the length of your Scenarios using Futrli's Advanced Copy option. This allows you to change the Start Date or the length of existing Scenarios, creating a copy of the original Scenario with the new date range.
Changing the Length of a Scenario
To change the length of a Scenario, navigate to the Scenarios section of Futrli and then click New adjacent to the appropriate Organisation. Click the Advanced Copy creation method from the bottom right:
Select your Scenario and choose a new Scenario Length from the drop-down: