Live inputs in Rekordbox DJ

It would be so nice, if i had the possibility to use the Rekordbox DJ effects on real vinyl. I gig using timecode and regular vinyl as a joined force, but as soon as I change to Phono on my DJM-450, it says EXTERNAL MIXER, and none of the effects work.

Traktor has this option, you guys can do it to :)

Best Regards 

Mathis