Click the Text Pane button
Type text in the [Text] box.
You can use the arrow keys to move around the Text pane
Use the Promote or Demote buttons to indent.
At the end of a line, press Enter to insert a line
Select line text, and then press Delete to remove a line.
Click a shape, and then type text directly into the shape.
When you're done, click outside of the SmartArt graphic.