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variable: $normdsampallflag -- toggle save all
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default: 0

"NormSamp, Clust Controls" parameter.  To adjust,
access pop-up by L-click on "label:" (bold).

This flag only affects the operation of:

  write_label_timecourses_stats
  ("label:" line "T" and "S" buttons)

It has no effect on:

  paint_surface
  ("val3d:" line "PAINT" button)

If ticked, timecourses (and/or stats) are written
out redundantly for every vertex in the input
label, even if they sample the same voxel.
