Enter a series of latitude/longitude points to define a Polygon. You do not need to repeat the first point of the polygon as your last point. Enter values in decimal degrees, with up to 3 decimal places. Longitude values must be between -180 and 180. The orientation of your polygon points is determined by the current map bounds. e.g. if you wish your polygon to cross 180 and not go the long way around the globe, first change your Map View to View... World 0-360. Enter only one polygon each time you use this dialog!
Click on the Clear button to remove all latitude/longitude entries.