The menu introduced with Lotus 1-2-3 that became a de facto standard, especially in DOS apps. The Lotus menu is a row of words, each of which is an option that can be selected by highlighting it and pressing Enter or by pressing the first letter of the word. When the word is highlighted, an explanation line is displayed directly above or below it. See Lotus 1-2-3
A Lotus Menu
Lotus menu explanations always appeared directly below the menu item currently selected, providing a form of context sensitive help.