Hello!

Is Cue a function where you can hear a sound from a track without it going out through the main outputs? I just noticed there are two “cue outputs” on the back. If you have headphones put in there, does that mean you can hear something in your headphones without the audience hearing it?

That would be awesome.[/quote]
Yep:
Just put a headphone in.
Whatever Track you wish to mute: press the Cue Button and the Trackbutton. Voila (works for the Inputs as well)
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That is really amazing news. If I understand this correctly, I can prelisten to everything I will perform on my OT, as well as on the synths I plug into the OT inputs. This is super, super, super. Thank you!