Integrations (PTC products, 3rd party products and code) > 3rd party product integrations (CM, DOORS, Rose, Simulink and XML) > Configuration management tool integration > How to... > Work with an earlier version of a model or package > Getting an earlier version of a CM tool model (CM tool integration)
  
Getting an earlier version of a CM tool model (CM tool integration)
You get an earlier version of a CM tool Model, by getting the versions of the CM tool Model and Packages you require through the CM tool, and then creating a replica from those files.
To get an earlier version of a CM tool Model:
1. Create a folder.
2. From the CM tool, perform get operations to populate the folder you created with the required versions of the Model and Packages.
Ensure that you get the template.txt file and all other non IDF, MDF and PKF files.
3. Start Model Explorer.
4. Right-click the database in which you want to create the new Model, point to Create Replica, and then click From Directory.
5. Select the folder you created in step 1, and then click OK.
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When you create a replica, the Packages in the Modeler environment are created as stubs.
You will require read access to the CM tool Model and its Packages, and write access to the database in which you are going to create the replica. If the Model exists in the database, the create replica operation will be aborted.