To enable, go to _System Preferences > Keyboard > Input Sources_, add _Unicode Hex Input_ to the list (it's under _Other_), then activate it from the input dropdown in the Menu Bar.
By default, this mode uses the left Option key (`KC_LALT`), but this can be changed by defining [`UNICODE_OSX_KEY`](#input-key-configuration) with another keycode.
+ **Note:** Using the _Unicode Hex Input_ input source may disable some Option based shortcuts, such as: Option + Left Arrow (`moveWordLeftAndModifySelection`) and Option + Right Arrow (`moveWordRightAndModifySelection`).
+
* **`UC_LNX`**: Linux built-in IBus Unicode input. Supports code points up to `0x10FFFF` (all possible code points).
Enabled by default and works almost anywhere on IBus-enabled distros. Without IBus, this mode works under GTK apps, but rarely anywhere else.
### Additional Customization
-Because Unicode is such a large and variable feature, there are a number of options that you can customize to work better on your system.
+Because Unicode is such a large and variable feature, there are a number of options that you can customize to work better on your system.
#### Start and Finish input functions
### US International
-If you enable the US International layout on the system, it will use punctuation to accent the characters.
+If you enable the US International layout on the system, it will use punctuation to accent the characters.
For instance, typing "`a" will result in à.