1. Home: Use this to return to the home screen view.
2. Now: This shows the screen you're seeing right now.
3. Fuel: Tap to cycle between showing info for electricity, gas, or both together.
4. Calendar: Tap to cycle between energy usage for today, this week, this month or this year.
5. Menu/OK: Tap to visit the menu, or confirm a selection when scrolling through options.
6. Arrow keys: Use to scroll through options or information on the screen.