To specify the remote Web server for a Web site project
In Solution Explorer, right-click the name of the Web site project for which you want to specify a Web server, and then click Property Pages.
In the Property Pages dialog box, click the Start Options tab.
Under Server, click Use custom server.
In the Base URL box, type the URL that Visual Studio should start when it runs the current project.
http://msdn.microsoft.com/en-us/library/vstudio/ms178108(v=vs.100).aspx
If that option is unavailable, check this article
- Make sure you have most recent release of VS.NET 2013
- Modify *.sln file (as described in the above link) and add required url and set UseIISExpress to false