public static void RemoveCombined(MadMeshCombinerManaged managed)
 {
     var combined = managed.CombinedObjects().ToList(); // ToList() because we will be removing children
     foreach (var c in combined) {
     RemoveGeneratedAssets(c);
     GameObject.DestroyImmediate(c.gameObject);
     }
 }
 void OnEnable()
 {
     managed = target as MadMeshCombinerManaged;
 }