Click the Back Arrow button (<) to navigate backwards in the panels according to the predefined structure of the help system. When you click the Back Arrow button, you will be sent backwards through the structure of the consecutively written help topics, as if you were turning pages backwards in a book. This differs from clicking the Back button because there are certain auxiliary panels in the help system that are not part of the ongoing logic of the help system, but are reference panels. These reference panels are not picked up by the Back Arrow button.