ACTION_FUNCTION(TEENSY_KEY), // FN0 - Teensy key
ACTION_LAYER_MOMENTARY(1), // FN1 - switch to Layer1
ACTION_LAYER_SET(2, ON_PRESS), // FN2 - set Layer2
ACTION_FUNCTION(TEENSY_KEY), // FN0 - Teensy key
ACTION_LAYER_MOMENTARY(1), // FN1 - switch to Layer1
ACTION_LAYER_SET(2, ON_PRESS), // FN2 - set Layer2