| Description | Multi-level book structure. |
| Dimension | Organization |
| Hierarchy | BookHierarchy |
| Levels | [ALL, Level 1, Level 2, Level 3, Level 4, Level 5, Level 6, Level 7, Level 8, Level 9, Level 10, Level 11, Level 12, Level 13, Level 14, Level 15] |
BookHierarchy
The BookHierarchy in the Organization dimension of FRTBCombinedCube, providing a 15-level hierarchy for aggregating positions across the full book structure