private bool addToModel_(BCOM.ModelReference model = null) { model = model ?? App.ActiveModelReference; BCOM.Level level = ElementHelper.GetOrCreateLevel(LevelName); App.ActiveSettings.SetByLevel(level); BCOM.Element element; FrameList.GetElement(out element); if (element.ID != 0 && element.ModelReference == model) { return(true); } FrameList.AddToModel(model); FrameList.GetElement(out element); bool res = element.ID != 0; return(res); }