Horizontally aligned system menu in a vertical panel on the left or right of the screen

[duvron]

If the panel screen position is left the system menu items are aligned as such: (w - wi-fi; s - sound; p - power; icons)
| (w) |
| (s) |
| (p) |

whereas an option to align it horizontally could be added like this:
| (w) (s) (p) |