public IReadOnlyList<LockedSectionDefinition> GetSelectedLockedSections()

{
  var surfaces = MapView.Active.GetSelectedIsosurfaces();
  //set selected w/ MapView.Active.SelectVoxelIsosurface(isoSurface)
  var slices = MapView.Active.GetSelectedSlices();
  //set selected w/ MapView.Active.SelectVoxelSlice(slice)
  var sections = MapView.Active.GetSelectedSections();
  //set selected w/ MapView.Active.SelectVoxelSection(section)
  var locked_sections = MapView.Active.GetSelectedLockedSections();
  //set selected w/ MapView.Active.SelectVoxelLockedSection(locked_section)
}

{
  var locked_section = MapView.Active?.GetSelectedLockedSections()?.FirstOrDefault();
  if (locked_section != null)
  {
    // Use the locked section
  }
}

{
  var locked_section = MapView.Active?.GetSelectedLockedSections()?.FirstOrDefault();
  if (locked_section != null)
  {
    voxelLayer = locked_section.Layer;
    //TODO - use the layer
  }
}

{
  // Note: call within QueuedTask.Run()
  {
    var locked_section = MapView.Active?.GetSelectedLockedSections()?.FirstOrDefault();
    if (locked_section != null)
    {
      var variable = locked_section.Layer.GetVariableProfile(locked_section.VariableName);
      locked_section.Layer.SetSelectedVariableProfile(variable);
    }
  }
}