public void SetSelectedVariableProfile( 
   VoxelVariableProfile variableProfile
)

//var voxelLayer = ... ;
//Must be on the QueuedTask.Run()

var profiles = voxelLayer.GetVariableProfiles();

//Select any profile as long as it is not the current selected variable
var not_selected = profiles.Where(p => p.Variable != sel_profile.Variable).ToList();
if (not_selected.Count() > 0)
{
    voxelLayer.SetSelectedVariableProfile(not_selected.First());
}

//Must be on the 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);
}