The Help targets use the default window, named main, to specify the size, location, appearance, and user interface presented to the reader. You can change the default characteristics by editing the properties of this window.
You can also define secondary windows for displaying certain kinds of information. For example, if a topic lists a series of steps for carrying out a procedure, you may want to provide links to other topics with illustrations or additional instructions. By associating a secondary window with the character style that implements the link, you can display multiple topics simultaneously while giving the reader control over the level of detail and the layout of the Help windows. Adding a window can be achieved by right-clicking anywhere in the window list pane on the right side of the project editor.
For more information, see Customizing Help Windows.