ISE
Changing Source Properties
Source properties control the Design View that the source is associated with. You can update these settings as follows.
Note For more information on Design Views, see Using the Design Views.
To Change Source Properties
  1.  In the Hierarchy pane of the Design panel, select a source file.
  2.  Select Source > Source Properties, or click the Edit Source Properties toolbar button Image.
  3.  In the Design View Properties dialog box, edit the options.
  4.  Click OK.

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