To access a Help window, you can click on the grey Help bar in the main content of the step. This will expand the help window. You can click on the grey Help bar again to minimize the help.
There are three kinds of Help. In the first type the help content always available. The second type is only available after you have attempted the step for a certain amount of time (determined by the instructor). The final type can only be accessed after completing a question in that step. To hide the Help, click on “Help”.