Hold down the "ALT" key and double click the words above the tool bar you want to change direction of. Then release the ALT key. If the tool bar is hidden and only the words show, just left click on the words and it should show in the new direction. It took me a few tries to get it to work. The main thing is to hold down "ALT" while clicking the words above the tool bar.

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi