void SetDefaultProjectUnitFormat( 
   DisplayUnitFormat defaultFormat
)

{
  // Note: Must be on the QueuedTask.Run()
  var unit_formats = Enum.GetValues(typeof(UnitFormatType)).OfType<UnitFormatType>().ToList();
  foreach (var unit_type in unit_formats)
  {
    var current_default = DisplayUnitFormats.Instance.GetDefaultProjectUnitFormat(unit_type);
    //Arbitrarily pick the last unit in each unit format list
    var replacement = DisplayUnitFormats.Instance.GetProjectUnitFormats(unit_type).Last();
    DisplayUnitFormats.Instance.SetDefaultProjectUnitFormat(replacement);

    var line = $"{current_default.DisplayName}, {current_default.UnitName}, {current_default.UnitCode}";
    var line2 = $"{replacement.DisplayName}, {replacement.UnitName}, {replacement.UnitCode}";

    System.Diagnostics.Debug.WriteLine($"Format: {unit_type}");
    System.Diagnostics.Debug.WriteLine($" Current default: {line}");
    System.Diagnostics.Debug.WriteLine($" Replacement default: {line2}");
  }
}