Hello, I am relatively new when it comes to cjds and my first gig is most likely going to supply me with a cdj2000nexus setup. I recently analyzed all my songs in rekordbox by clicking on analyze track. Is this all I need to do to enable the sync function/beatgrid? Also when there is a 2 deck or 4 deck mixer, how do I link the usb to all of the individual cdjs? Please help, you would be taking alot of stress off of me. Thank you (p.s. I know most people aren't very fond of the sync function, but I am going to be mixing 100bpm track with 145-150bpm tracks, very rapidly so it helps alot).