IOS Branding possible agentry strings

In newest SDK 7.3.0.6 there is a possibility to hide SAML-button on login screen (SMPAGENTRY-24300 Allow SAML authentication to be hidden via a branding option)

But there is no note on how to enable this feature, is there a list where we see the possible agentry strings that we can use in the branding.plist file (like for example agentryServerUrl )?

Thanks in advance,

Tom