We've recently introduced a new feature on Figured - a global settings ribbon which allows you to set your budget year and financial view (budgets, actuals, forecasts).
What does this mean for you? Set your year and financial view once, and then all the subsequent pages on your farm will display with the same settings. Re-forecast for 2018 in your trackers and your planning tab, then run a cashflow report with the same settings.
You can find more information about using this feature here in our help centre.