# Get started with the Data Source Model Editor

The model editor displays if you choose to customize your model in the last step in the Data Source Wizard, or if you edit the data source later by clicking **Manage Data Sources**, selecting a data source, and clicking the **Edit** icon.

1. Open the Data Source Model Editor by clicking **Manage Data Sources**, selecting a data source, and clicking the **Edit** icon.

   The Data Source Model Editor appears.
2. Select the **Reporting** tab to edit a reporting relational model, or the **Analysis** tab to edit the analysis multidimensional model.
3. You can now edit the model or clear the model and start building a model from scratch. For instance, you can choose a field and drag it to the appropriate folder on the **Analysis/Reporting** model pane.

   This causes that field to be displayed and used when designing reports.
4. Click **OK** when you are done editing your model.

The model builds and appears in the **Data Source** list.


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.pentaho.com/pba/data-source-model-editor-cp/get-started-with-the-data-source-model-editor.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.