The script to swap the assignment (Wan <--> DHCP) of the PoE-port works for 2-port devices. To make it work for 1-Port devices (e.g. NSM Loco, CPE v2+) we need a solid way to generate a "wan" network-section, as this is not done by OpenWrt.
I'm not sure if we should generate a "hardcoded" template wicht we might need to update according to further changes of OpenWrt or if we can "adapt the OpenWrt generate-config" logic.