> For the complete documentation index, see [llms.txt](https://docs.fabricplan.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.fabricplan.com/user-guide/5-top-down-allocation/5-4-multi-dimensional-allocations.md).
# 5.4 - Multi-dimensional allocations
Learn how to create multi-dimensional allocations using breakdowns and enable bi-directional streaming across planning sheets.
### Add a breakdown
1. In the data input side panel, select **Add Breakdown**.
2. The **Add Breakdown** panel opens automatically and displays a breakdown of the row dimensions in the current planning sheet.
3. Update the reference measures using the **Reference Measures** field.
4. Select **Add** to create a new breakdown.
5. Select the new breakdown field to add dimensions from your semantic model.
6. Expand the required table and select the dimensions to add. In this example, select **Brand** as the common dimension.
7. Add a second breakdown. In this example, select **Region** and **Country**, along with **Brand** as the common dimension.
8. Select **Create**.
9. Verify that the data input panel shows the added breakdowns.
10. Select **Create**.
11. Verify that a confirmation message appears after the cube is created successfully.
### Use breakdowns across sheets
1. Create a new planning sheet with a region hierarchy in rows and a date hierarchy in columns.
2. In the **Data** sidebar, expand the **From Sheets** section.
3. Expand **Cube**.
4. Locate the **Budget** data input measure. Select the ellipsis menu to enable bi-directional streaming between sheets.
5. Select **Insert as a measure**.
6. Verify that the cube measure is added as a data input measure in the current sheet.
### Perform bi-directional allocation
1. Enter a value for **Budget** in **Q1** in the regional planning sheet.
2. Verify that the value is allocated automatically across countries.
3. Return to the first planning sheet where the cube was created.
4. Verify that the Q1 value is streamed in real time and distributed across the category hierarchy.
5. Enter a value for a specific **Brand** in **Q2**.
6. Verify that the value is distributed through the row hierarchy and aggregated to the grand total.
7. Return to the regional budget sheet.
8. Verify that the value is updated automatically in the regional budget sheet.
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