Let’s use Program A006: Nasty Bass as an example.
(3.1-1a) [Menu] -> [Pitch] -> [Open] -> tab[Osc1].
Set JS(+X) to +12, and JS(-X) to -12. This is where you can set
(separately) the number of semitones that either direction will bend.
Now go to tab[Osc2]. Since this is a 2-oscillator program, you must set
this the same way for the second oscillator (which can actually have a
different bend range if you want.)
Now, the JS bends up and down an octave. If you want to save this,
press the sequencer [Rec/Write] button and answer Yes (to save to the
same location), or choose [Utility] ->[Write Program] to select a different
location.
+ Parameter Guide, Page 12.