The mark was pinned to the folder the reading was asked of, so a walk through
a whole roll said C2 while the frames under it were what was being read. It
now hangs on the folder the reading stands in — `progress.at` — and on every
row above it up to and including the roll's own row: reading D:/A/B1/C2 marks
C2, B1, A and D:, and as the walk moves the chain moves with it. A reading
that has not reached a frame yet has nowhere to stand, and stands on the
folder it was asked of, so the ring is on the column from the click.
3dtours
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