As of today, I don't think specific documentation was released for new features in LFDS 10.3, at least I have not found what I was looking for.

I am trying to implement an alternate WebSTS site on a server in DMZ where Forms and WebClient are also installed. This will be used for a specific group of peoples who don't have access to the internal network.  These users' accounts are LFDS users.  WebClient and Forms will be configured to use this alternate STS site.

Any documentation related to configure in this environment and using this newer feature "Add Site" in LFDS?

The LFDS additional STS site is also referring to a SAML2 URL to the new WebSTS site and seems it needs to be a valid URL to save this configuration. Does this new setting allowing a simpler configuration where we don't need to use server certificates anymore?

In the event where a password reset is required, the LFDS server can send out a URL to the user but it seems to be sending the URL to login to the main LFDS web site where these users don't have access to.  Is there a way to configure this so that the URL being sent out will forward them to the external STS site in the DMZ?