The Performance Chart Pane displays the selected watch item(s) response time data. The data can be displayed in numerous ways (See "Performance Chart Options" section below).
The Performance Chart will initially load data for a watch item, but will not automatically refresh itself. Click on the Refresh button in the Performance Chart pane to refresh the chart from historical data.

[Response Time Chart displaying All time average for multiple watch items]
Toolbar

(From Left to right)
Constant Lines

When a single watch item is charted, two chart constant lines are displayed: