There should be an option to work in external mode with 2 or 4 decks:
Hi Lukas, can you see an iPad on my picture post?
External mixer on iPad or iPhone please.
thank you for your post.
Have you checked out http://help.algoriddim.com/customer/en/portal/articles/579449-how-to-use-an-external-mixer-with-djay…
Do you have a sound card which you want to connect, could you tell us with which you are working with?