# Pattern Versions

When a project is active, the **Options** menu gives you access to version control tools for managing pattern changes over time.

## Create a Pattern Version

Click **Create Version** to save a snapshot of the pattern's current state — including:

* Measurement values
* Pattern configuration
* All relevant settings

This is useful for keeping track of progress or testing variations without losing previous data.

## Access and manage pattern versions

The **Pattern Versions** panel allows you to:

* View all saved versions for the active project
* Restore a previous version at any time

## Size Reference comparison

You can set any version as the **Size Reference**.

When this is enabled, measurements from the reference version are shown alongside current values in the **Measurements List** (under *Measurements Settings*), allowing for easy comparison.

#### Example:

If your **Size Reference** is the finished version and you're working on a version with:

* X shrinkage: 3%
* Y shrinkage: 2%

…the two versions will be shown side by side in the list, making it easier to evaluate changes.

## Restore a version

To revert to a previous version:

1. Open the **Pattern Versions** list
2. Select the desired version
3. Click **Restore**

Clab Assistant will apply all data from the selected version to your current project.


---

# 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://help.clabassistant.com/manage-a-project/pattern-versions.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.