saving song regs

[4225jon]

Being ex bass player,have winced at Yamaha "style"bass patterns for years,so my
answer is to make a play along (mid)SONG,with B/Dr/Gtr/maybe vibes/str/pad.
Fine,great additional results using the mix console,DSP etc.
After a break, just acquired 770, and fished out my old mid standards,and thought I'd  mimic the "One tune reg" idea, but do it with a SONG instead of STYLE. Works beautifully of course in the moment, but CAN' T SAVE BUTTON SETTINGS any which way.
A workaround is save multiple track versions, and select them via reg,but foiled by "play next "FEATURE",curses. seems such a shame, as it's such a joy to play a tune with beautiful RH voices, with the CORRECT bass pattern; and better with a SPECIFIC pattern,say "All Blues" etc.
Attaching 4/4 version of ALeaves for example to see what I mean.
Any clues ?
big regards,
jonW

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