> For the complete documentation index, see [llms.txt](https://docs.mixeffect.app/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.mixeffect.app/automate/osc/messages/upstream-keyers/flying-key-enable.md).

# Flying Key Enable

| Message                            | Description                         | Arguments |
| ---------------------------------- | ----------------------------------- | --------- |
| `/mixeffect/usk/flying-key/enable` | Enables or disables the flying key. | Multiple  |

| Argument           | Type    | Description                                          |
| ------------------ | ------- | ---------------------------------------------------- |
| Flying Key Enabled | Integer | <p>0 = Off<br>1 = On<br>2 = Toggle</p>               |
| USK                | Integer | One-based index of the Upstream Keyer. Default is 1. |
| M/E                | Integer | One-based index of the Mix Effect Bus. Default is 1. |