DLNA firewall issues.

Still an idiot, and still having issues with this… (https://forums.opensuse.org/showthread.php/539643-DLNA-and-the-firewall)
Is there any way I can add an IP Address to the firewall, to allow all traffic from that address (my media servers), through to my local machine??
Have updated to 15.2, and again can’t access my media servers…
Have double (triple?) checked all my Zones/Interfaces, and sure all is correct, but trying to let standard DLNA ports through, I get nothing.
Thanks.