MULTI provides the Version menu in both the Builder and Editor Windows where you can perform version control operations such as checking in files, checking out files, and showing histories. For more information on Version menu options, see "Version menu" in the Builder or "Version menu" in the Editor.
When you begin to edit a file in the Editor, MULTI automatically checks out the file for you if Automatic Checkout is enabled. See "Check or uncheck `Automatic checkout'.". When you close a file you have checked out during an editing session, MULTI asks you whether to check in the file or leave it checked out.
When you open a project in the Builder, any checked out files in the project contains the user's name listed next to the file.
When you debug a program with MULTI, it attempts to find the version of the source files which was current when the program was built. Files from version control may be used if the source files have changed since the program was built.
If you are using ClearCase as your version control system, you need to set the view you want to use before you start MULTI. You cannot change it once you have started MULTI. However, you can see what your current view is by choosing Version > Show View in the Editor.