Hi YammyFan,
You can also use the following options (basically like the S970):
For Styles: To open the Style Selection display, press any Style Category button and go to "User > USB1" to see Styles on the first connected USB stick.
For Registrations: To open the Registration Bank Selection display, press both "REGIST BANK -/+" buttons simultaneously and go to "User > USB1".
Best regards,
Chris