You would display the data you want to edit in the Data Viewer and then edit it as required. To do this:

1. Display the chart containing the variable or attribute data point you want to edit. You may display this chart in the "Data Collection" window, on the "Charts" tab of the "Violation Browser" in the "Plant Monitor", or in the "Query Tool".
2. On the chart, click the variable or attribute data point you want to edit. This displays the "Data Viewer".
   
   



3. In the "Data" column at the top, overwrite the value you want to change.
4. If you would like to add or edit an "Assignable Cause", "Corrective Action" or "Note", do so while you have the "Data Viewer" displayed in the lower portion of the dialog box.
5. Click "OK". The "Data Viewer" closes, the chart is redrawn using the edited value and an Edit marker is added near the data point you edited.
   
   



6. If you ever want to view the original value at a future point in time, you can click the edited data point and scroll right in the top portion of the "Data Viewer" until the "Data (original)" column is visible.