> ## Documentation Index
> Fetch the complete documentation index at: https://docs.pluvo.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Create a New Driver

> note: '**Value Rules' have been renamed to 'Forecasts'.** You may still see references to Value Rules in text or images while we change over our materials.

***

<Warning>
  note: "**Value Rules" have been renamed to "Forecasts".** You may still see references to Value Rules in text or images while we change over our materials.
</Warning>

**Step 1:** Navigate to the drivers tab.

\
**Step 2:** Click ‘New Driver’.

<img src="https://mintcdn.com/pluvo-02a06e95/0FuIyQcO0nALAUMz/images/modelling/qbccFNUrhgT9UuAdPdvf.png?fit=max&auto=format&n=0FuIyQcO0nALAUMz&q=85&s=bee721bbf2c7deef7c3d5fd11c2a911e" alt="" width="2046" height="764" data-path="images/modelling/qbccFNUrhgT9UuAdPdvf.png" />

**Step 3:** Give your new driver a name, and category if necessary. <br />

**Step 4:** Select the unit of measure you would like this driver to calculate.

<Note>
  If you select "currency" as unit of measure, you will need to specify which currency. To add/remove currencies from this list, visit [forecast settings](/modelling/settings/organization-settings/forecast-configurations).
</Note>

Your new driver will appear within the drivers tab, but at this point it will not contain any values. Next, we need to add forecasts.

### Forecast on a Driver

Click on your driver to begin adding forecasts.

<img src="https://mintcdn.com/pluvo-02a06e95/0FuIyQcO0nALAUMz/images/modelling/Zhg6ewnNcVI0BQJzjBmc.png?fit=max&auto=format&n=0FuIyQcO0nALAUMz&q=85&s=3e08d90fec637fd2efc0c05ee44a814b" alt="" width="2304" height="1174" data-path="images/modelling/Zhg6ewnNcVI0BQJzjBmc.png" />

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Click ‘New Forecast’.

<img src="https://mintcdn.com/pluvo-02a06e95/0FuIyQcO0nALAUMz/images/modelling/HKSQe3d9hPN59tljaxGV.png?fit=max&auto=format&n=0FuIyQcO0nALAUMz&q=85&s=12ea156b15a9415d6d0b5d1fb6967cd6" alt="" width="2290" height="1276" data-path="images/modelling/HKSQe3d9hPN59tljaxGV.png" />

Ensure that you select an accurate start date for this Forecast, so that it drives the forecast.

<Note>
  The Forecast type can either be constant, growing, aggregation, or formula. These types all follow the same mathematical logic seen in the metric knowledge articles and beyond.
</Note>

Learn more about forecasting in [Metrics](/modelling/features/variables/metrics), [Variables](/modelling/features/variables), [Formulas](/modelling/concepts/formulas), and [Forecasting](/modelling/archive-keep-hidden/archived-pages/forecasting).

### Manual entry forecasts

You can also create forecasts on drivers by entering values directly into the grid, much like you would in a spreadsheet.

<img src="https://mintcdn.com/pluvo-02a06e95/0FuIyQcO0nALAUMz/images/modelling/xut4Lfeu8CXPcsMeijrD.png?fit=max&auto=format&n=0FuIyQcO0nALAUMz&q=85&s=7ecb02543042cb4fa6e4cc05e28f1724" alt="" width="1718" height="926" data-path="images/modelling/xut4Lfeu8CXPcsMeijrD.png" />

To create a manual entry forecast, simply double-click on a cell, type in the new value, and press enter.

<Note>
  Note that due to time-aggregation methods, manual entry forecasts are only available when the grid is set to monthly view.
</Note>

If there was already a forecast affecting that cell, pluvo will split the forecast into two new forecasts to ensure that past / future months are preserved. You can view and edit these new forecasts by visiting the driver detail screen for the affected variable.