VMS Help SCA, SET, LIBRARY, Qualifiers, /AFTER  *Conan The Librarian (sorry for the slow response - running on an old VAX)

       /AFTER[=library-spec]

    Instructs SCA to insert the new library or libraries into the
    list of active SCA libraries after the library you specify as
    the qualifier value. If you do not specify a value, SCA adds the
    library or libraries to the end of the list.