+You can customize the keys used to trigger Unicode input for macOS, Linux and WinCompose by adding corresponding defines to your `config.h`. The default values match the platforms' default settings, so you shouldn't need to change this unless Unicode input isn't working, or you want to use a different key (e.g. in order to free up left or right Alt).
+
+|Define |Type |Default |Example |
+|------------------|----------|------------------|-------------------------------------------|
+|`UNICODE_KEY_OSX` |`uint8_t` |`KC_LALT` |`#define UNICODE_KEY_OSX KC_RALT` |
+|`UNICODE_KEY_LNX` |`uint16_t`|`LCTL(LSFT(KC_U))`|`#define UNICODE_KEY_LNX LCTL(LSFT(KC_E))`|
+|`UNICODE_KEY_WINC`|`uint8_t` |`KC_RALT` |`#define UNICODE_KEY_WINC KC_RGUI` |
+
+#### Input Mode Cycling
+
+You can choose which input modes are available for cycling through. By default, this is disabled. If you want to enable it, limiting it to just the modes you use makes sense. Note that the values in the list are comma-delimited.