Ranger
1. Hold down the yellow shift button [ ^ ] and the [ALT] buttons, then press and release the power button.
2. A small keyboard should be showing. On the small keyboard, press the [CAPS] button then repeat step 1 to dismiss the
keyboard.
Another way is:
1. Go to Control Panel -> Keyboard and set "enable simple caps lock...." ON
2. After that pressing shift twice will switch CapsLock on/off.
Allegro
1. Press and release the blue function button followed by the CapLk/Shift button located at the lower left side of the
keyboard.