private void saveFurniturePrefabs()
    {
        _helper.ClearFurniture();

        foreach (Transform t in _helper.PrefabsContainer.transform)
        {
            if (t.gameObject != _helper.PrefabsContainer && PrefabUtility.GetPrefabParent(t.gameObject) != null)
            {
                _helper.AddFurniture(new FurnitureHelper.FurnitureData(PrefabUtility.GetPrefabParent(t.gameObject), t.localPosition, t.localRotation));
            }
        }

        clearFurnitureContainer();

        EditorUtility.SetDirty(_helper);
    }