I am implementing Sign in by using Azure AD accounts scenario, described here - https://docs.microsoft.com/en-us/azure/active-directory-b2c/active-directory-b2c-setup-aad-custom
I understand how to change custom policy in file SignUpOrSignIn.xml, but I don't want users to sign up freely into my application. I want to use sign-in only policy, but there are no sign-in only policies files in the starter pack.
Is it possible to have Azure AD login button on sign-in only screen?