You can assign a keyboard key to a mouse key using our OP software. Follow these steps:

1. Download the software from our website, https://fnatic.com/gear/op and start the OP.
2. Select the option to customize your mouse.
3. Go to Key bindings and click on the desired button.
4. Choose Action Keyboard Macro.
5. Click on Choose macro/New macro.
6. Start recording and save the action/key from your keyboard that you want to assign.

To customize colors for individual keys, use the OP software and select the option Lightning - Color Editor. To save a different color on each key, click on Add group, select the desired button, and set up the color that you want using the color wheel.