Rekordbox Automix Track Ordering

I sometimes need to use automix in rekordbox. Before v7, I was able to re-order tracks in the automix window by drag & drop. Now in 7, I can no longer do this. Am I missing something or did I somehow disable this feature? Or is it a feature that is disabled in the Free version?

I'm a mobile DJ, and from time to time, need to step away from the decks to do something like tear down wedding ceremony gear, track down someone or gather the wedding party for intros, etc. etc. and automix has been clutch for me in these instances.