The online help of Sophos UTM is divided into different sections which can be accessed via the sidebar:
Contents: Here, information about Sophos UTM is presented chapterwise and oriented to the sections of the WebAdmin menu. Click the topics in the Contents section of the sidebar to display information to the topic and to see the chapter's subtopics. Note that you can define topics as favorites by clicking the Star icon in the header bar of a specific topic.
Index: Here you can search for given keywords.
Search: This section provides a full-text search for the whole online help. Note that you can save searches by adding them as favorites.
Glossary: This section contains explanations of abbreviations and technical terms used in the help and WebAdmin.
Favorites: You can save topics and searches as favorites which you can then find here. It is a convenient way to quickly access information you frequently need.