Manage sites with Site Manager
Using Site Manager, you can add and remove sites from the list that Microsoft Expression Web displays when you click Site and then click Open Site.
You can add an existing site to the managed site list without having to open the site.
On the Site menu, click Manage Sites List.
In the Managed Sites List dialog box, click Add.
Browse to a site on your computer or on a network computer.
Expression Web creates a Site name, based on the name of the folder that contains the site. Alternatively, you can enter a Site name of your own.