The Command Line Interpreter (CLI) tool is a very simple keyboard interface to the Directory Opus command set.
The command line lets you run internal commands directly without having to configure a button or hotkey first. It is similar to using the find-as-you-type field in command mode. You can also display the full template for any internal command by entering the command name followed by a ? symbol (as in the screenshot above).
The CLI is not exposed by default in the user interface - you can add the CLI internal command to a toolbar or menu if you wish to use this tool.