Make a cue output that works more like a mixer headphone output
When using PlayIt live with a single "mixed" output it would be useful to be able to have headphones which always have the main output on them (whether via a mixer or not) but when cueing/prehearing a track it plays that instead. Once the prehear ends the output would go back to the main output. With this output (and minimal latency) there would be no need to ever change what headphones are listening to.