I read online that the first 3 dips are set to off for a single bar (A01-A08). The fourth switch apparently doesn't have a purpose, at least, that's what it infers. I'm super confused! Something that would seem so simple is rather difficult. Like when I start messing with the settings I can see the status light on the bar start flickering so I know something is going on. I've got the lights and skimmer set to auto (timed) but the pumps are manually set to stay on. Anyone have similar setup that could chime in?