This help stack can be accessed in two ways: by topic (using the directory
in the first card of this stack) or by holding down the command-key while clicking on any of the (non-obvious) buttons in the HyperSource
("RefCard") stack.
If you use the command-key method you can return to your place in the RefCard stack by clicking the "return" key below. (Clicking the "RefCard" button will take you to the first card of the RefCard stack).