ATOL does not subscribe to changes at the resource level (see [here](https://github.com/ATL-Research/incremental-class2relational/blob/ccc2a5be33a1e5d9c0a4797ace614fcdd14b4973/solutions/atol/transformation/src/main/java/atol/example/transformation/Run.xtend#L37)) thus it cannot detect added or removed elements at the root. Simple fix would be to add an adapter on the resource and catch add / remove at the root.
ATOL does not subscribe to changes at the resource level (see here) thus it cannot detect added or removed elements at the root.
Simple fix would be to add an adapter on the resource and catch add / remove at the root.