The Trader includes a set of drawing tools that allow you to insert trend lines, channels, squares, circles, and text on your chart. For example, to draw a trend line, go the Drawing menu, select Trend Line and then put the left mouse button on the chart where you want the trend line to start and then line up the trend.
To edit a line already on the chart, select it with the left mouse button, then move the line, change the color, or delete it using the delete key.
The drawing tools include Fibonacci retracements, projections and time lines. See the help file for details.