# OnAddCommands

The **OnAddCommands** event is called to allow your [script add-in](https://chaoses-ib.gitbook.io/directory-opus/manual/scripting/script_add-ins) to [add internal commands](https://chaoses-ib.gitbook.io/directory-opus/manual/scripting/example_scripts/adding_a_new_internal_command). Call the [**AddCmdData**](https://chaoses-ib.gitbook.io/directory-opus/manual/reference/scripting_reference/scripting_objects/addcmddata)**.AddCommand** method once for each command you wish to add.

| **Method Name:**   | OnAddCommands                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
| ------------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Argument Type:** | [**AddCmdData**](https://chaoses-ib.gitbook.io/directory-opus/manual/reference/scripting_reference/scripting_objects/addcmddata)                                                                                                                                                                                                                                                                                                                                                                                                   |
| **Return Type:**   | *none*                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
| **Description:**   | When Opus starts up, or when a script add-in is added, edited or enabled, its **OnAddCommands** method is called. This allows a script to [add internal commands](https://chaoses-ib.gitbook.io/directory-opus/manual/scripting/example_scripts/adding_a_new_internal_command)to the Opus command set. A script can reinitialize its list of commands at any time by calling the [**Script**](https://chaoses-ib.gitbook.io/directory-opus/manual/reference/scripting_reference/scripting_objects/script)**.InitCommands** method. |


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