You can configure site types under Manage > Topology: Sites & Networks. Under Site Types, click the arrow (>) to expand the page, and click the plus sign (+) to display the New Site Type pop-up window. These configuration options are available:

Specifies the name for the site type. The name must be unique and can’t contain special characters.

Specifies a description for the site type. This description will help you make configuration changes and to associate issues with particular sites.