Select a seat to inspect it. Shift-click, or shift-drag along a row, to toggle availability.
Select a seat on the map to see its geometry, then pin it to compare it against others.
Mean, then worst. A block is only as good as its weakest chair, so rank by worst when the whole group matters equally.
Normalised, so the score stays on 0-100 however you set them.
Distances carry roughly ±10% error, so treat small score differences between adjacent rows as noise.