Building on what you’ve done previously, @pje, back in February you uploaded a patch (Ch1:B Sos cc69 (Preset 4).mhp) which does the “flipping” of CC69 in line1.
So your new preset would look like this:
(if you need to use CC69 unmodified further down the chain, then just create a new CC id as the Feb patch did and use that)