On the right side of the screen, the Help palette appears together with the Project Navigator by default. The Help palette shortly introduces how to use the currently selected tool. It may contain an image (optional) and the instructions what to do next when using a tool. Its advantage is that the content is visible throughout the execution of the command.
If you want to create more space in the drawing area, click the Auto Hide icon in the upper right corner and the Help palette disappears behind a tab. To see the Help palette again, hover over the tab, and you see the palettes in a slimmed-down format.