(Part II\part2) (Part II \Descriptions of IND Directives) <abstract> <p> Part II alphabetically lists IND directive descriptions. However, the following related pairs of directives are described and alphabetically listed together under the first directive name of the pair, since their descriptions involve the same material and have similar examples: <list>(simple) <LE>.AND/.OR <LE>.ENABLE/.DISABLE <LE>.IFDF/.IFNDF <LE>.IFENABLED/.IFDISABLED <LE>.IFLOA/.IFNLOA <LE>.SETD/.SETO <LE>.SETT/.SETF <endlist> <endabstract> <endpart_page>(renumber)