Thingworx Navigate SSO with Okta, and only Okta

Hello, 

I was wondering if anyone has setup Thingworx Navigate to use SSO but only using Okta as the IDP and CAS. We're working on implementing SSO in our Windchill environments and thus our Thingworx Nav would need to be switched to SSO as well, since it integrates with Windchill. 

Our company has decided we will not use Ping Federate or another CAS and thus only Okta will be used for SSO. We've discussed this with PTC and they said that this is possible to do, but since it's not supported (without Ping Federate) they won't help, so we're on our own trying to set this up.  

I'm more looking for guidance and what info would be needed to send to the Okta group so they can setup the app on their end to talk to Thingworx Navigate. 

Thanks!