> 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/7-what-if-simulations/7-1-add-a-simulation-measure.md).
# 7.1 - Add a simulation measure
1. On the **Planning** ribbon, select **Insert Column**, and then select **Simulate**.
2. Enter a name for the simulation column.
3. In the **Based on measure** dropdown, select the measure to use for the simulation. In this example, the simulation is based on **PY Revenue**.
4. In **Variance Formatting Style**, select how variances should be displayed. For example, selecting **Positive** formats positive variances in green and negative variances in red.
5. Turn on **Show Slider** to display the simulation slider on the canvas.
6. Configure the **Value Range** to define the minimum and maximum simulation percentage. In this example, the range is set from **-100% to +100%**.
7. Select **Simulation Value** to choose whether the simulated value is displayed to the left or right of the original value.
8. Select **Create**.
9. The simulation measure is added to the planning sheet. Select a cell in the inserted column to view the simulation slider.
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