Auth0 as SAML identity provider using Auth0 users

For testing purposes, I want to have one Auth0 account with configured Auth0 users, serving as a SAML Idp and another Auth0 account with an app that will use the SAML Idp to authenticate and login.

I would like to know how to configure the first Auth0 account (SAML Idp).
How can I achieve this in the most simplest way?

Found it. Need to configure an application and to add the “SAML2 WebApp” addon to the application. see Enable SAML2 Web App Addon