Set up your base and looking to test out some what-if situations, scenario layers can help with that. When creating a new scenario layer this will be layered on top of your base scenario allowing you to see what impact changes have on the cash flow.
To get started hit the scenario dropdown shown just above the graph followed by 'New Scenario'. This will generate the following popover.
Give the scenario layer a name and colour (to differentiate it from other layers) and hit 'Create scenario layer'. Now that you've set up the new scenario let's get to grips with scenario layer budgets.