private void SetBlueprintsVisible(bool visible)
 {
     ContourBlueprint[] blueprints = targetBuilder.GetComponents <ContourBlueprint>();
     foreach (ContourBlueprint bp in blueprints)
     {
         bp.hideFlags = visible ? HideFlags.None : HideFlags.HideInInspector;
         EditorUtility.SetDirty(bp);
     }
 }