Is such a solution possible? If this is not possible, it would be possible to select the headphones button for several channels. I only send the kick drum and bass guitar to the sub-bass. This solution will allow you to gain one aux for the next guy
The CQ core has a main LR mix and 6 independent outputs that can be linked for up to 3 independent stereo outputs. It is not possible to add more mixes in the core.
Discussed here - https://community.allen-heath.com/forums/topic/increase-stereo-individual-mixes
Using the headphone/listen buttons to hear multiple channels is known as additive PAFL on our bigger mixers and there’s a feature thread for it you could add to here - https://community.allen-heath.com/forums/topic/multi-channel-listen
Thanks,
Keith.