> For the complete documentation index, see [llms.txt](https://docs.avoautomation.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.avoautomation.com/avo-assure/create-and-execute-tests-with-design-studio/working-with-test-case-section/reusable-library/using-reusable-library-in-test-cases.md).

# Using Reusable Library in Test Case

You can add an existing test step group from a test case into your Reusable Library. This lets you reuse steps you have already created across multiple test cases, instead of recreating them or setting them up as new reusable step groups from scratch. This article describes how to move an existing test step group into a folder under Reusable Library. 

To add a test step group to an existing reusable library, perform the following actions:

1. On the **Home** page, under **Projects**, select the required project.
2. Select **Design Studio** > **Test Case**.
3. In the left pane, under the **Test Cases** section, select the required test case folder.
4. Select the test case, and then select the test step group that you want to add to the Reusable Library. The associated test steps appear.
5. Select the **Reuse** icon. The **Select Folder** dialog opens.
6. From the **Select a folder** dropdown, select the required destination folder under Reusable Library. The **Confirmation** dialog opens.
7. Select **Yes** to move the test step group to the Reusable Library. The test step group is added to the selected folder under Reusable Library.


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