Keystroke: f (from menu)
If there are topics which you wish to refer to on a regular basis you can add them to a list in the Favorites tab here in the on-line Help. Setting Favorites may be useful for frequently accessed items such as Keyboard Shortcuts.
To save a Favorite topic, you can navigate to the topic you need, then switch the left-side Help panel from the Contents tab to Favorites. At the bottom of the panel, the Add button puts the topic into the multi-line list that takes up most of this panel. Your favorite items in this list make a set of quick links to the information you need most.