Options for the viewport appearance and the objects it contains. 
View Name: Shows all available views. You can use this list to select another view to fill the viewport.
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Rendering: If you want the view inside a viewport to be rendered, check the desired render type on the left side of the Properties window. 
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Note: If Hidden Line, Draft, or Quality mode is specified, you can explode the viewport. An exploded viewport becomes a Group of graphics or Picture object, which you can verify in the Selection Info Palette.
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