he Control Panel on the right side of your screen has a few buttons that we haven't mentioned yet. The reference card that came with your game shows a diagram of the whole Control Panel and labels all of these buttons.

The right-pointing arrow to the right of the Overlay button lets you hide the Control Panel to see more of the map. When the Control Panel is hidden, this button changes to a left-pointing arrow; click it again to bring back the Control Panel.

The four small buttons beneath the large Advisors and Empire Map buttons let you review your present assignment, or change the orientation of the province map. The curved arrows pointing left and right rotate the map by 90 degrees in the corresponding direction. The circle with an arrow pointing straight up returns the view to “due North,” which is the direction you started with.

The first button on the bottom row (with a big “X” on it) lets you undo the last thing that you did. You aren't allowed to undo every single action in the game, but you can usually un-build whatever you last built. This ability lasts just for a short while after you have built something – after that, the effects of building it have already changed the game so much that it would be very complex to unravel.

Use the undo feature immediately after you build something by accident. The button appears dark when you aren't allowed to undo anything, and “lights up” when you can undo your last act. If you build something in the wrong place, or accidentally build the wrong building, click “undo” to make the building go away and refund its cost to your treasury. Note that if you undo something while time is paused, it will not go away until you un-pause the game.