According to the v1.06 addendum, here are the new FC-7 assignments:
Start/Stop, Intro, Ending, Variation1,
Variation2, Variation3, Variation4,
Bass Inversion, Arranger Hold,
FillIn Half Bar
Fill Ritardando
Arr. Rit Tempo
Arr. Acc
Tempo
Arranger Chord Off,
Perf. Next, Perf. Prev,
Portamento, Hold, Soft, Sostenuto,
Lower Hold, Track Mute, Break Mute,
Part Ex. UP2/1
Reset/Start, AudioXfade,
Fade Out, ChordRecOff, Melody Intelligent,
Mfx Switch
Rotary S/F
so no, you can't select OTS from the FC-7 (I'd sure like that!) but yes, you CAN select Performance Up/Down... (or Next/Previous, as they call it)
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An arranger is just a tool. What matters is what you build with it..!