Is there any way to pass pangolin authentication credentials through Plex app?

I have a Plex server I am hosting for family and friends and have decided to use pangolin to pass external traffic back and forth to my Plex server. Because of the way pangolin works, where you first authenticate to pangolin, and then to Plex, it presents an issue for those attempting to connect to my Plex environment via app. I'm not aware of a way to pass pangolin credentials through the app. Web ui works fine because these users can enter their pangolin creds via ui, then creds to Plex and everything works great after that. Question - has anyone found a way to pass pangolin login creds through a TV or fire stick running the Plex app, or another alternate solution? I'd prefer not to have to disable pangolin authentication if possible.