# Sting Source

| Message                              | Description                               | Arguments |
| ------------------------------------ | ----------------------------------------- | --------- |
| `/mixeffect/transition/sting/source` | Sets the source for the Sting transition. | Multiple  |

| Argument | Type    | Description                                                                                 |
| -------- | ------- | ------------------------------------------------------------------------------------------- |
| Source   | Integer | <p>1 = Media Player 1<br>2 = Media Player 2<br>3 = Media Player 3<br>4 = Media Player 4</p> |
| M/E      | Integer | One-based index of the Mix Effect Bus. Default is 1.                                        |