How to stop new series from being automatically added to a chart?

When you add a new series to a document, it’s automatically included in your charts. To disable this, you have to do the following for each of the charts:  

  1. Click on an empty area in your chart (i.e., below the x-axis). This opens the general chart properties under the Presentation properties tab.
  2. Click 'More' in the chart elements box.
  3. Now, untick the option 'Include new series automatically'.