I’d like to bump this feature, I’m having a similar application where I’d like to bridge 2 WiFi networks together. One would access a network and the other would create an access point and they would be bridges.
Perhaps a “WiFi to WiFi tethering” option in the list where one can choose which wlanx are bridged. If this is too much work could somebody point me to resources where the OSMC networking is explained so I can try manually myself.