You can access Genos in USB storage mode for transfers of wave files and song files. Once you can access Genos User Drive through USB storage mode, you can test whether you can directly modify the registrations through YRM.
P. 153 of Genos Reference Manual (version D) describes the procedure:
Accessing the User Drive of Genos from the Computer (USB Storage Mode)
When the instrument is in the USB Storage Mode, Wave files and Song files can be transferred between the User drive
of Genos and the computer. When the instrument is NOT in the USB Storage Mode, the USB connection can be used
for MIDI control. The USB interface does not directly handle audio signals.
1 Turn the computer’s power on.
2 Turn the Genos’s power on while holding the [PLAYLIST] button to enter the USB Storage Mode.
The SIGNAL lamp on the panel flashes in green while in the USB Storage Mode.
3 Manage files/folders in the User drive of Genos by using the computer.
4 To exit the USB Storage Mode, turn the power of Genos off.
Download link of Genos Reference Manual version D:
https://usa.yamaha.com/files/download/other_assets/7/1131007/genos_en_rm_d0.pdfThanks,
Paul