RPI4 openwrt Build

Evening all.

I've started on the rpi4 openwrt build. So far, I have the rpi4 running openwrt and have installed Luci.

I can connect to my current network and configure the rpi4.

How do I go about setting eth0.1 and eth0.2 for LAN and WAN and also disable the bridged lan. It seems I might have added new eth0.1 and eth0.2 interfaces correctly, but I am unable to disable the br-lan.

Is this something that has to take place via SSH and not in the Luci interface?

Once I get the interfaces setup I can move on to the switch configurations, but it seems I will be unable to modify the default lan (#1)...wasn't expecting that.

Any help, most appreciated.