Here is some documentation for Apple's Pages application.  We are going to transform this into a visual tutorial.  First, copy the text from the original lesson.

Create an new lesson in ScreenSteps and give it a title.

Paste the text from the original document into the step.

The problem here is that we have text that describes four steps pasted into a single ScreenSteps step.  So, we are just going to split it.  Here I have placed the cursor at the end of the first step.

Right click (or ctrl-click on Mac) and select Split Step At Insertion Point.  The step will be split wherever you have placed the cursor.

Here I have split each list item into its own step.

Click on the Replace Step Image icon and capture an image for that step.  

Here you can see that I have added an image.

Now, reading through the text I can see that they actually combined three steps into one.  So I will split it up a bit more.

Here you can see that I split the instructions mid-sentence.

Add annotations and step titles.  I also reformatted the original text.  All in all it took me about 5 minutes.