The line tool allows you to draw a freeform series of connected lines. Simply click each location where you wish to have a line endpoint. When you're finished, you can either double click at the last position, or click the Create Element button. If you make a mistake and wish to start over, the Remove Points button will remove all existing points. Once you are done, a Pen element is created and selected, and you can adjust any other options (such as line width, fill, etc.).