Changing Predefined Command Files If you want to make changes to a built-in, that is, predefined, command file, you can use the command file for that item as a template. To modify a command file that executes a built-in command: 1. Copy the command file from the VUE$LIBRARY directory and edit it. 2. Give your command file a name that identifies the task it performs, giving it a file type of COM. Do not give your command file the same name as an existing Session Manager command file. Do not delete the command files in the VUE$LIBRARY directory that execute Session Manager's built-in menu items. If you delete your new definition, the Session Manager uses the original command file to execute the built-in menu item.