You may want to change the zoom level by entering a new value in the Zoom dialog box.
On the View menu, point to Zoom, and then select Set, or press CTRL+3.
Note
Bear in mind that while you are changing the zoom level, if there's something selected on the page, Fred4 will NOT try to keep the selection centred on screen, but it will default to the upper left corner. Thus, it is recommended to use other methods, such as Change zoom by keys in small steps, Change zoom by mouse wheel in small steps or Zoom selection to window.