I use the discover service on Plex a lot to search across all the selected streaming services that I use.
I also use a DNS service to watch specific streaming channels of other countries. I don’t use a VPN. I have those channels as apps on my Apple TV. They are not usually available to watch in the country I’m in without the DNS service (or a VPN).
Is there a way for me to add those additional services into Plex for me to add to my selected service so that they are also searched when I use the Discover function on Plex?