Overlapping windows. Opening the file folder called “Ehardt’s Tests” (which was shown in icon form in the ProFile window) reveals that it contains a number of documents. Furthermore, the graphic on each icon reveals the office application tool that created it (i.e., LisaCalc, LisaGraph, LisaDraw, LisaProject, LisaList and LisaWrite, from left to right). The fact that “Ehardt’s Tests” is the active window is confirmed by the highlighted title bar and the visible horizontal and vertical scrolling bars along the right and bottom edges of the window. (Note how it differs from the inactive and mostly hidden window labeled “ProFile.”)

The scrolling bars contain various graphic buttons for positioning information within the window, and the mouse is used to “click” one or another of them for the desired effect. The “arrow” buttons cause small changes of position (e.g., one line), while the nearby “view page” buttons cause the majority of the displayed information to be erased and new information shifted in (e.g., next screen with some carryover). The “elevator box” button at the top of the vertical shaft (and at the left of the horizontal shaft) causes “thumb indexed” jumps to positions within the viewed object. To perform this jump, simply slide the appropriate box vertically or horizontally within the respective shaft, and information located at that relative location will be displayed when you release the mouse button.