rekordbox merge

hi guys.. i wonder if there is an automatic method to merge 2 usb pendrives db.

i Mean, usb pendrive 1 with Contents an PIONEER folders

usb pendrive 2 with Contents an PIONEER folders as well.

so i would like to get a usb pendrive 3 with Contents an PIONEER folders, as the merged folders from usb1 an usb2

and so on ...

well, in fact what i am locking for is to merge all my pen drives into a hard disk. There is not a RB Database, there are only the pendrives.

thanks for comments