This is part of an effort to make streams and blueprint more similar. The bulk of that will be realised by removing DataGroups: - https://github.com/rerun-io/rerun/issues/4441 Current design: <img width="624" alt="image" src="https://github.com/rerun-io/rerun/assets/49431240/ef7a53bf-4f7d-4073-8e0f-02bd53d7d82e"> **TBD**: opportunity to distinguish entity paths ("empty"/no logged components) vs actual entity? <img width="395" alt="image" src="https://github.com/rerun-io/rerun/assets/49431240/a4855089-f785-48e2-89bd-b192aad27168">