# Customize your mass

### 1. Set story heights

{% hint style="info" %}
Story heights are controlled directly inside of Finch
{% endhint %}

* In the **`Massing Studio`**, select a story in the building (hold shift to select a range, hold Ctrl to select multiple specific stories).
* The value in the center of the context menu (3000 mm) is the default story height. Fill in a new height for the selected stories, and the remainder will be calculated and added to the top floor.
* The **`Story Height`** accordion menu on the right panel displays the different story heights and quantities within the building.

<figure><img src="/files/tjK2UmVsENZK5E8d6dBB" alt=""><figcaption></figcaption></figure>

### 2. Set wall widths

* Navigate to the **Outer Walls** menu at the bottom of the right panel.
* Input your desired outer wall width and press **`enter`**.

<figure><img src="/files/OChzy8aKK5wPi9ohmUYt" alt=""><figcaption></figcaption></figure>

### 3. Assign programs

{% hint style="info" %}
Programs allow for detailed and customized massing calculations while also providing an overview visualization of the building’s makeup.
{% endhint %}

* Select a range of stories and hit **`Assign Program`**, choose one of the presets or select **`Create new program`**.
* Enter a name, select a color and hit **`OK`**.

<figure><img src="/files/E3xAOV9P5bohMYytZ3E5" alt=""><figcaption></figcaption></figure>

***


---

# 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.finch3d.com/docs/projects-and-variants/massing-studio/customize-your-mass.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.