WebView Trend Automatic Advance

The first step will be to enable the Auto Extend feature for each Pen that you are tracing.

The trend chart will only update if there is a change in one of the Pen values.  If you would like the trend chart to be updated over a regular interval regardless of a point change, you will need to assign a point to a Pen that will update regularly.  A local system time tag is recommended to maintain a regular update interval.  Disabling the visibility of the Pen will prevent this trend value from appearing within the trend view.