I´m not close to my instrument, if I remember correct :

- Button "STYLE-MODE"
- Button 1/5 ( to switch to table 2 )
- Button F5
- Cursor Left/right to toggle between "On" and "Off".

With Button F10 you can activate it for a specific style, with F5 global.

* * * * * *

I got a solution how to "fix" the rpoblem with hanging sytles / stopping accompaniment when using "old" registrations.

Call the registration, ( remember the style-tempo you set if it´s not factory ! ), choose any other style and thereafter choose the sytle that was saved in the "old" registry ( and set the desired tempo ! ). Now save the registry. From now on it works as it should;)