§To move through the tour, use the button you see in the bottom-right corner of the screen.

Click the right arrow to go forward.
Click Menu to go back to the list of topics.
Click the left arrow to go backward.

When the arrow is gray, it means you can’t go in that direction.

To remind you to click the right arrow to go on, you’ll see this symbol 
at the end of what you read.

Now click the right arrow to go on. >>>Nˇ.