This sets Default Layer to given parameter `layer` and activate it.
- ACTION_DEFAULT_LAYER(layer)
+ ACTION_DEFAULT_LAYER_SET(layer)
#### 2.2.2 Momentary
ACTION_BACKLIGHT_STEP()
+Turn a specific backlight level on or off.
+
+ ACTION_BACKLIGHT_LEVEL(1)
+
#### 2.5.2 Turn on / off backlight
Turn the backlight on and off without changing level.