To add a Trendline,

  1. Right-click the chart and select Drawing Tool and Trendline.
  2. Click the chart where you would like the first point.
  3. Move the cursor to where you would like the second point and click the bar.

To display the price where the current bar would intersect the trendline,

  1. Right-click the trendline.
  2. Select Display Current Value.