It’s a role the role should play IMHO.
But indeed I don’t see a way to do this to a cluster of clips, directly in the inspector.
You can break apart some clips in the timeline, but then lose the benefit of grouped audio/video.
And with differents roles to each channel, you could mute or solo all your HF track without even expanding or breaking apart the audio, even without selecting the clips.
You also can do “open in timeline” to clips, BUT one by one.
But there should be a way, in the inspector, like we can disable CH1 or CH2, to assign a specific role to one channel only, and another to the other channel.
Sorry for bad English…