RB6 exporting to USB for outside CDJ play

All kinds of issues with RB 5.85 ever since I upgraded to Catalina, all I wanted to do was to an  have an RB database on external drive so I can go from one computer to the another able to record histories and so on. I was using Record Buddy as a go between from Serato to Rekordbox which worked fine until Catalina and Record Buddy stopped working, so next obvious choice is to go to RB 6

I have a subscription to RB6 but was hesitant to use it because of capabilities. I want to start off fresh but I need to know if I go to RB6 will I be able to export tracks / playlists to the usb sticks I use when I play out on other CDJ's? Will any CDJ2000NSX's see my usb's? regardless of the firmware they have?

Also I need to have ONE database so I can use on my three Macs.

Plz advize