Did you know that eSignal has a tool to display Fibonacci-based price levels?
On the title bar of a chart, enable the Drawing Tools icon then select the Fibonacci Extension icon:
The Fibonacci Extension tool requires three clicks to display the price levels. In a uptrend, the first click will be a bottom, the second will be at top, and the third will be at a bottom. In a downtrend, the first click will be a top, the second will be at bottom, and the third will be at a top (retracement).
To edit the price levels, right-click one of the Fib Extension lines and select Edit. Check or uncheck which Fibonacci price levels to display.