Keycloak as Identity Broker over SAML without Artefact Binding

Hello,

we would like to setup an external Keycloak Identity Broker to authenticate Users with our internal Keycloak. The internal Keycloak is running in an internal network and not accessible via network from the external keycloak.

Is it possible to use keycloaks Identity Provider Feature with SAML to skip step 5 and 7 in the graphic? So only going via the redirect?

Thank you!