Ok, after some looking around and testing, think I finally got what I wanted.
First, map the share, err mount the network share. Gotta use the Linux lingo. :P
sudo mount -t cifs -o username=MyUserName //PlexServerName/Sharename /mnt/movies/
Will have to enter both the sudo password and remote Plex server password manually, but that works for me as this is a manual, not automated, process.
And to sync:
sudo rsync -hvrPt --ignore-existing /Drive/SourceFolder/ /mnt/movies/
I was reading somewhere that using -a would add more options that might gum up the works, so I manually expressed what I wanted instead. But I finally got what I was looking for. If you have any suggestions, chime in. Thanks!
Thanks, clicking submit disabled the binary sensor call_in_progress. But the main VOIP is set to assist_satellite.