Chipstack v4 Gateway-Bridge MQTT topic on multi-band

How do i modify the chipstack-gateway-bridge.toml to support entries for more than one region band .
I have to implement all us915_* bands (0-7) and looks like the config key is limited only to one for the mqtt topics.

//MQTT integration configuration.
//Event topic template.
event_topic_template=“us915_0/gateway/{{ .GatewayID }}/event/{{ .EventType }}”

//Command topic template.
command_topic_template=“us915_0/gateway/{{ .GatewayID }}/command/#”

Currently one ChirpStack Gateway Bridge = one region configuration. You need to start multiple ChirpStack Gateway Bridge instances, for each region configuration one.

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