DDJ-SX2 Rekordbox - Doesn't work!

So i've been using Serato for many years but i really want to try Rekordbox and possibly even pay for it as it looks pretty cool, however, for the life of me following countless instructions i cannot get the controller to control Rekordbox.

The device outputs music perfectly with Serato.

The device is recognised in Rekordbox in the audio page but does not list as a "Control Device" at the bottom of the audio page.

It's very frustrating and i would really appreciate help to get this working.

Thanks.