When you choose this menu item, a tiny sheet opens where you can adjust many parameters for a formatted list.
When you close the form with [OK], the currently selected text lines will be formatted as a list. If no text was selected, a new list will be started at the text edit cursor position.
Everytime when you write list entries end press [Return], a new list item line will be inserted with the previously assigned formatting. Quit this input mode by removing the automatically inserted formatting of the last inserted list item line with [Backspace] and press [Return] to quit the paragraph.
Een exactere beschrijving van deze systeemdialoog en zijn functies
kunt u vinden in de Finder bij Mac Help
.