Use menus to perform editing operations with the mouse instead of
  typing commands or pressing defined keys.

  To use a pull-down menu, do the following:

      1.  Point to the name of a menu in the menu bar.
          Press MB1 to display the menu.

      2.  Position the pointer on the item you want and click on MB1.

  To use a pop-up menu, do the following:

      1.  Within a buffer's borders, click on MB3 to display the pop-up
          menu.

      2.  Position the pointer on the item you want then click on MB3 again.

  o  SCA provides different pop-up menus for different windows.

  o  If you choose a menu item that requires additional information, a
     dialog box appears where you can type the information, such as a file
     specification or library name.

  o  Some menu items have a dialog box where you can choose settings or
     preferences (for example, View... in the Options
     menu of the result window).