public override OpStatus Apply()
{
Objects = new List <SceneObject>(Group.GetChildren());
Group.RemoveAllChildren();
Scene.RemoveSceneObject(Group, false);
return(OpStatus.Success);
}
public override OpStatus Revert()
{
created_group.RemoveAllChildren();
Scene.RemoveSceneObject(created_group, false);
return(OpStatus.Success);
}