Gitlab.com and ADFS

Hi all,

I am trying to figure out if Gitlab.com can be integrated with ADFS.
I looking to have a mirror of a local gitlab installation with a gitlab.com instance, but I do require the possibility to allow external users via ADFS.

From what I have seen in the documentation, this is possible with the EE edition but I cannot find anything related the gitlab.com (SaaS).

Is this actually possible? Where can I find details for the configuration in the documentation?

Thank you,
Alex