When a text file is loaded and showing on the screen, the style controls are deactivated, mean to say you can't do fills, change variations. So i use the pedal board. Is this true also in your case?
Jimmy
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Jim

SD90,Korg I3, KMA Liverpool,TC Helicon Play Electric, Fender Sonoran Guitar, vArranger, Bose S1 Pros, Bose L1 Compact, Aiwa Exos-9