Hot Spot only on wlan (via LTE)

I have router providing hotspot on all ports, Lan and WiFi - Internet is provided via USB LTE port.
Hot spot is setup to bridge interface and all ports are added to that bridge.

How do I exclude ethernet port from hot spot?
(If I try to remove ethernet port from the bridge, it does not have Internet access as LTE is in that bridge and it can be added to only one bridge…)