Reply to Swap Deck Tracks in Traktor Pro

Does anyone no if it's possible to swap the tracks in decks A/B without having to go to playlist, so that I can switch the beat on deck A with the scratch on deck B in a seamleass fashion so that I can switch from scratching the scratch with left hand to right hand.
I am using Traktor Pro with the numark Mixtrack and Audio 2 DJ.
You would believe that Traktor would have a switch button feature.
There certain scratchs I can do with my left hand/left deck and visa versa.
Is this already a feature in Traktor that I am missing? If not Native Instruments should surely see the value of this feature for scratch DJ's.

Any help from you guys would be great.

Thanks