/sys$common/syshlp/helplib.hlb SCA, SCA Topics, Glossary, visible_modules  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    Modules that SCA can examine when performing a FIND or INSPECT
    command. The current library list tells you what modules are
    visible. All modules in the first library in the library list
    are visible. Modules in the second library which are not in the
    first library are visible. Modules in the third library which are
    not in the first or second libraries are visible. Any module which
    is not visible is hidden.