Hi Donna,
Thanks for the followup!
This method would work for both www and non-www to get it over to https://. We handle redirects on the Nginx layer, so by adding in a Redirect Rule it overwrites any default platform redirect rules in the User Portal and ensures your preferred setup is handled first.
If you run into any trouble getting it configured, please reach out to us and we'll be glad to ensure it gets set up properly. Should anyone tell you it's not possible, request that they reach out to me and I'll be sure to instruct them on the method to get it squared away.
Cheers,
Jared Arnold