yeah there is this option somewhere in the batocera es menu which says something like ¨swap a and b ¨ but that does nothing on my pi 3B, it seems that on my raspberry pi3b out of the box batocera swaps the a and b buttons making a/cancel and b/ok. however-on my desktop x64 with batocera the mapping of a and b is correct out of the box after an fresh install. odd is that this is what you d call a minor problem within batocera (5.26 current), which you would suppose had been fixed long ago.