I don't know what happened, but all of a sudden in Maschine 2.18.4, the NI Accessibility Helper is active on my Maschine Studio and S61-Mk2. I have tried double pressing shift on the S61 and shift-play on the Maschine Studio, but she just keeps on chattering away.
I can at least get it to say training mode on and off by double pressing shift, but that seems to have no effect because the speech is active regardless.
Also, it appears that there is supposed to be an entry for the Accessibility Helper in Native Access 2, but I don't have it.
Thanks, yall
##Update/edit## Ah, got it— turned it on/off using Shift+Mixer on the S61, which affects both the Studio and the S61.