You can rotate a drawing view with the Rotate command.

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When you rotate a view, it becomes unaligned. You can use the Maintain Alignment command to restore the view to its original orientation.
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Dimensions on the drawing view rotate with the view, if they a placed using the By 2 Points (1) or Dimension Axis (2) method. Dimensions placed with the Horizontal/Vertical (3) do not rotate by will adjust the value to show the dimensions size in the rotated view.

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You cannot perform folding, cropping, or broken view operations on rotated views and you cannot derive section or auxiliary views from a rotated view. The rotated view cannot be used as input for the Principal Views, Cutting Plane, or Auxiliary View commands.