Hi,
it looks like a long shot for the app to do this, but I'll look into it. I've started using it about 6 years ago. Although the app is top class, updated constantly with new and USEFUL functions, I'm not sure it would control such thing....My best guess is that controlling the keyboard/module/arranger via MIDI file would accomplish what you're asking...
I'll be back with a report on this...
Cheers from Romania!
Be safe!
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Roland RD700 exp., Ketron Audya5, Ketron MIDJPRO, TC Helicon Harmony-M, EV N/D967, Shure Beta58A, Roland FR4X, Yamaha PSR SX900