Library /sys$common/syshlp/sca$menu.hlb DECW Popup Menus  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  To display pop-up menus, click MB3 while positioned in an SCA window.
  To choose an item from the menu, position the pointer on the desired item
  and click on MB3 again.

  In each window, SCA offers different pop-up menu options, depending on
  which commands are more appropriate or commonly used.