Petition: Add option to switch between stereo and mono output.

I've been using the XDJ-RX/RX2 at bars weekly since they each came out and swear by them. My only gripe about them is that there still is no option to output in mono. The much older Denon MCX8000 has this feature so I don't understand why the pioneer RX2 doesn't?

Due to the sound setup in several of the bars I work in, I end up with the problem that one side of the bar is hearing the vocals of the stereo track I'm playing while the other is hearing the instruments.

I've inquired on here numerous times about a possible firmware update to include a mono output feature but unfortunately have had no luck. I'm hoping that some polite nagging from myself and hopefully others will lead to this feature being implemented in the next generation of this product or even the current model. Thank you!!