# Luma Key Gain Adjust

| Message                               | Description                                          | Arguments |
| ------------------------------------- | ---------------------------------------------------- | --------- |
| `/mixeffect/usk/luma/key/gain/adjust` | Adjust the Gain setting for the Luma upstream keyer. | Multiple  |

| Argument         | Type    | Description                                                                               |
| ---------------- | ------- | ----------------------------------------------------------------------------------------- |
| Adjustment Value | Float   | -X to decrease the value by a certain amount, Y to increase the value by a certain amount |
| 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.                                      |