# Auto

| Message                | Description                                                                                                                                              | Arguments |
| ---------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------- | --------- |
| `/mixeffect/ssrc/auto` | Performs an Auto transition. If SuperSource is not on preview, this function will first set Preview to SuperSource before performing the Auto operation. | Multiple  |

| Argument       | Type    | Description                                                                                                            |
| -------------- | ------- | ---------------------------------------------------------------------------------------------------------------------- |
| SuperSource ID | Integer | One-based index of the SuperSource ID. If left blank, it will use the currently selected SuperSource.                  |
| M/E            | Integer | One-based index of the Mix Effect Bus. If left blank, it will use the currently selected Mix Effects Bus respectively. |