Single Sign-on presents the same UI when you create a SAML application or edit it. When you create a SAML application, Single Sign-on provides two different methods:
Single Sign-on provides multiple templates for common SAML applications. It also provides a default template to use when creating a SAML application. The template simplifies creating the SAML application.
Single Sign-on allows you to manually create a SAML application by creating the required metadata. You still must configure the federation connection on the connected services.