The sextant is used as a navigation tool, most useful when sailing. It is operated using two functions. The first uses the reset selection to set its point of origin. Every time you do this it will reset the coordinates to 0, 0 at the current position. The other function is used to see the relative distance and direction of your current location to that of the point you have set to the origin. This will be displayed as: longitude X and latitude Y. The X-axis increases to the right (north on the map), and the Y-axis downwards (east on the map).