Port Forwarding wan selection limitation?

Hello,

My second EdgeRouter arrived and while it requires more things to set up than my first one which was actually just a router for a unifi wireless access points network I have been looking on how the firewall & port forwarding works.

The port forwarding GUI that I was reading about was missing since it came with EdgeOS 1.3 which so I upgraded to 1.8 today. Did I get an old machine here?

While the portforwarding "tool" looks easy I seem to have stumbled upon a limitation.

I have 2 WANs which I can select but the rules don't mention to which WAN it is applied.

If I use the [x]Enable auto firewall (automatically open ports for specified port forwarding rules)

or not no rules seem to be added to the firewall tab either.