XDJ-1000 via DDJ-SX

I want to connect my XDJ-1000 to my DDJ-SX and play music via Rekordbox 4.0 on channel 4. I can connect the XDJ-1000 on channel 4 but can't manage the music, the tracks won't appear on the screen of the XDJ-1000. When I rotate the big knob from the XDJ-1000 then I can see that on my screen of the laptop, I can select a song and play it but that's all.

Can anyone please help me? Thanks in advance.