```

  (Call sub "probe_z_minus_wco" to Probe top of Workpiece)
  o<probe_z_minus_sub> call [1][2][3][4][5][6][7][8][9][10][11][12][13][14]

  (Record Z zero in selected WCO)
  G10 L2 P#5220 Z[#5063 + #<workspace_z>]