Rekordbox Cue Sound Output

Hi, I am using rekordbox without any mixer. I have a midi controller and successfully mapped all the setting to my midi controller. However, I am having a issue to separate the sound of the cued track with the track actually playing on that moment. I am using a focusrite 2i2 audio interface for my master output. When djing, like anybody else, I need to listen the song I am going to play next with the cue button but could assign a different audio output to that button. Preferably, I would like hear track I am playing from focusrite output and would like to use the computers headphones for the next track I am cuing. Is such a thing possible without having a dj mixer?