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Change the legend menu options to suit your needs. Be sure that the Line Type is set to area as stacking only works with the area line type. Set stack to True in the stack text bar. After this information is input to your liking continue to click Add in the bottom right corner and watch your new chart populate with information. Be sure to save the chart from the Edit Chart menu when it is complete.
Step 4 Add another interface to the stack:
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