struct Action
{
  int keyID; 
  int keyModifierID;
};

//Hardware buttons and Actions are ordered from the bottom left to the top right matrix. Rotary encoder: left, right then press
Action presets[][15] =
{
  {
    {KEY_MEDIA_PREV_TRACK, 0},
    {KEY_MEDIA_PLAY_PAUSE, 0},
    {KEY_MEDIA_NEXT_TRACK, 0},
    {KEY_F16, 0},
    {KEY_F17, 0},
    {KEY_F18, 0},
    {KEY_F19, 0},
    {KEY_F20, 0},
    {KEY_F21, 0},
    {KEY_F22, 0},
    {KEY_F23, 0},
    {-1, 0}, //menu / back
    {KEY_MEDIA_VOLUME_DEC, 0},
    {KEY_MEDIA_VOLUME_INC, 0},
    {KEY_MEDIA_MUTE, 0}
  },
  {
    {KEY_F13, MODIFIERKEY_SHIFT},
    {KEY_F14, MODIFIERKEY_SHIFT},
    {KEY_F15, MODIFIERKEY_SHIFT},
    {KEY_F16, MODIFIERKEY_SHIFT},
    {KEY_F17, MODIFIERKEY_SHIFT},
    {KEY_F18, MODIFIERKEY_SHIFT},
    {KEY_F19, MODIFIERKEY_SHIFT},
    {KEY_F20, MODIFIERKEY_SHIFT},
    {KEY_F21, MODIFIERKEY_SHIFT},
    {KEY_F22, MODIFIERKEY_SHIFT},
    {KEY_F23, MODIFIERKEY_SHIFT},
    {-1, 0}, //menu / back
    {KEYPAD_MINUS, MODIFIERKEY_ALT},
    {KEYPAD_PLUS, MODIFIERKEY_ALT},
    {KEYPAD_ASTERIX, MODIFIERKEY_ALT}
  },
  {
    {KEY_F13, MODIFIERKEY_CTRL},
    {KEY_F14, MODIFIERKEY_CTRL},
    {KEY_F15, MODIFIERKEY_CTRL},
    {KEY_F16, MODIFIERKEY_CTRL},
    {KEY_F17, MODIFIERKEY_CTRL},
    {KEY_F18, MODIFIERKEY_CTRL},
    {KEY_F19, MODIFIERKEY_CTRL},
    {KEY_F20, MODIFIERKEY_CTRL},
    {KEY_F21, MODIFIERKEY_CTRL},
    {KEY_F22, MODIFIERKEY_CTRL},
    {KEY_F23, MODIFIERKEY_CTRL},
    {-1, 0}, //menu / back
    {KEYPAD_MINUS, MODIFIERKEY_CTRL},
    {KEYPAD_PLUS, MODIFIERKEY_CTRL},
    {KEYPAD_ASTERIX, MODIFIERKEY_CTRL}
  }
};

int getPresetsCount()
{
  return sizeof(presets)/(sizeof(Action)*15);
}

Action getAction(int presetID, int physicalKeyID)
{
  int presetCount = getPresetsCount();
  return presets[(presetID % presetCount)][physicalKeyID];
}