CDJ 900 Nexus

I have recently purchased a couple of 900 Nexus and DJM 750 mk 2.

I use Rekordbox on my laptop with the 900 as the controllers. I have the controller linked by Lan as well.

Is it also possible to plug a USB direct into the CDJ's and use the link facility - at the moment it will only show on the deck its plugged into.