Snapping a Leader to 45° Increments
While creating a Leader, hold the Shift key to snap the Leader to the nearest 45° increment.
- Click to set the start point of the Leader.
 - Start dragging to get near the desired orientation.
 - Press and hold the Shift key.
 - The Leader snaps to the nearest 45° increment.
 - Continue holding Shift down and dragging to set the length.
 - Click to set the endpoint of the Leader.