CorelDRAW's PowerLine tool is the next best thing to Mama Nature for creating lightning. A setting of .03" is good for thin lightning, .07" is good for the bigger variety. The Wedge 1 selection creates a tapered line from the specified width to a point. Draw a bunch of jagged lines and then select your very best efforts and save them, and your sky background (in Draw 5 format) for the next step. Before you do this, select each bolt and from the Arrange menu chose Separate. Select the PowerLine again and Un Group it. Give all the sections a solid fill. When you open the CDR file in Xara, you’ll need to select the elements in each bolt and Arrange-Combine Shapes-Add Shapes. It's a bit of a drag but PowerLines are one of Corel’s unique animals.