Measuring Direction 
•The Compass Tool can be used in two different modes. Radial Mode is useful when you want to measure the direction from one location on the map to several other locations. The anchor point will remain fixed at point A when a direction line is created from point A to point B. Waypoint Mode is useful when you want to measure a series of directions along a zig zagging route
•You can toggle between these two modes via the Preferences menu