The Memory Analysis editor has several icons that you can use to control the view:
| Use this icon: | To: | 
|---|---|
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               Set the Chart and Detail Pane to a horizontal layout, one beside the other | 
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               Set the Chart and Detail Pane to a vertical layout, one above the other | 
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                       | 
               Shows the Detail Pane if it's currently hidden | 
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                       | 
               Hide the Detail Pane so the Chart pane has more display room | 
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                       | 
               Hide the Chart pane so the Detail Pane has more display room | 
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                       | 
               Toggle the Overview pane on and off |