A Farm Template in the context of Scalr is a JSON representation of a Farm including Farm Role configuration. Farm Templates are intended to serve various use cases related to "Infrastructure as code" as well as facilitate a "Self Service Catalog" experience for Scalr end users. Farm Templates are used in conjunction with the Service Catalog to provide this "Self Service Catalog" to your end users.
Farm Templates are configurable at the Global, Account, and Environment scopes and are accessible via the Main Menu under the Service Catalog > Farm Templates header.
The Farm Templates page will provide a listing of the currently configured Farm Templates and allows for management of your appropriately scoped Farm Templates.