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tickbox var: $locklabelflag -- immobilize labeled
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default: 0 (FALSE)

The "locklabel" tickbox (F3 panel, lower middle)
toggles whether vertices under a label (displayed
using "D") are immobilized during shrink and
morph operations.

This flag also disables smoothing of vertex data
(curv, val, val2) at locked vertices otherwise
performed by the functions:

  smooth_curv
  smooth_val
  smooth_complexang_realamp

Usage example -- repair fsaverage inflated_avg

Immobilize all vertices in the fsaverage
$hemi.inflated_avg surfaces except for a few
giant triangles at the north and south poles.

Usage example -- only adjust not masked

Immobilize vertices without significant auditory
mapping data.
