Using the Search Function
The "Search" function allows you to find an arbitrary text in the help subjects. Write the search texts into the "Input searched text" field and the "List of topics" button launches the search. The list of found topics containing the searched text is displayed under the buttons in a column. Highlight the topic of your interest by clicking on it and the "Display" button opens the corresponding topic in the right part of the dialog windows (double-clicking option is also available.)
The searched text is highlighted in blue. Switching back to the "Contents" tab shows the topic location in the main tree (contents of the help).
Dialog window "Help" - "Search" tab