It will be helpful if some body with that have run the Pen drive update can explain what is:

"melody controls with OTM ( One touch melody )" as describe in the Ketron site. Maybe a feature similar to Kog OTS?

From Ketron.it:

PRESETS & PROGRAMS : 430 new Presets and 320 new Programs.
Ketron�s new VCE : Voice Character Emulation featuring authentic sound reproduction using Key Off, Sound noises, Morphing, Rotor to Pedal, Aftertouch, Sustain switch and Coupling features.
New melody controls with OTM ( One touch melody ) and Harmony types linked to Preset or Program voices.