2.Hmmm… well the bottom two non-retention magnets appear to be consistent in polarity and position, but the top two vary. It looks like there are 4 positions per magnet, though it’s possible other overlays place the magnets closer and could then hold 9 positions (non-overlapping). And assuming a single configurable circular magnet in each quadrant…
(2 polarities * 4 discrete positions)^4 = 4096 unique position sets, which checks out.
I suppose if the overlays are indexed sequentially it’d make sense that the first 64 overlays wouldn’t need two of the magnets to change, which would explain why the bottom two non-retention magnets match across the overlays. The top-left appears to have the most variation positionally, so that’s perhaps the least significant 3 bits, with the top-right being the next higher bits. And then the bottom two being the higher remaining 6 bits.
