slider1:0<0,2,1{do nothing,only mid,only side}>mode
slider2:0<0,1,1{default,inverted}>mid polarity
slider3:0<0,1,1{default,inverted}>side polarity

in_pin:L in
in_pin:R in
out_pin:L out
out_pin:R out

@sample

slider1 == 0 ? (
spl0 = spl0;
spl1 = spl1;
);

slider1 == 1 ? (
spl0orig=spl0;
spl1orig=spl1;
spl0 = (spl0orig+spl1orig) * 0.5;

slider2 == 0 ? (
spl1 = (spl0orig+spl1orig) * 0.5;
);
slider2 == 1 ? (
spl1 = (spl0orig+spl1orig) * -0.5;
);
);

slider1 == 2 ? (
spl0orig=spl0;
spl1orig=spl1;
spl0 = (spl0orig-spl1orig) * 0.5;

slider3 == 0 ? (
spl1 = (spl0orig-spl1orig) * -0.5;
);
slider3 == 1 ? (
spl1 = (spl0orig-spl1orig) * 0.5;
);
);
