2 ways should do it in RB itself
with the drive plugged in go to the CDJ settings in preferences and setting tab and make sure "apply settings on device automatically" is unchecked because it never works and never sets them automatically, bug since day one. Uncheckk that and then hit "apply on all connected devices" at the bottom, it will push all your settings to the flash drive
also with the flash drive plugged in, click n the flash drive and you can modify all the settings manually on it in the pane to the right like in pic 2 i attached.
hope that helps