You can open a site diagram from the Project Explorer. Site diagrams have a .wdm file extension in the current project.
Note If another user makes changes to a site diagram since you last updated your Web project files, those changes will not appear in your site diagram. To view the latest changes, close the site diagram and synchronize the Web project.
To open a site diagram
-or-
Double-click the name of the diagram you want to open.
The site diagram appears.
You can now move the pages, add new pages, or remove pages from the site diagram.
Note If you open a site diagram after changing your system colors, the site diagram colors may not display properly. To correct this, save and close the diagram before opening the diagram again.