We strongly encourage you to work through the tutorial materials that come with the software, before jumping into Help.
If, after working through the tutorials, you require information from Help, we'd suggest that you begin by scanning the Table of Contents. The contents will point you to the relevant section. Then, look on the first page of the section, where you will find an overview of what's within. Finally, go to the appropriate sub-section, and find what you need.
Help provides documentation for both the Macintosh and the Windows versions of the software. Essential operation of the software is the same on both platforms. Where clear differences in operation do exist, notes in the figures or in the text, will explain platform-specific differences.