Library /sys$common/syshlp/lse$clihelp.hlb DEFINE, LANGUAGE, Qualifiers, /OVERVIEW_OPTIONS  *Conan The Librarian (sorry for the slow response - running on an old VAX)

       /OVERVIEW_OPTIONS=(MINIMUM_LINES=m, TAB_RANGE=(t1,t2))

    Specifies both the minimum number of lines an overview line must
    hide and the range of acceptable tab increments.

    The specifiers are as follows:

    o  MINIMUM_LINES=m

       Specifies the minimum number of lines an overview line must
       hide. The default is 1. For example, if the value of the
       parameter on MINIMUM_LINES is 5, then a line hides other lines
       only if there are at least five lines to hide. This specifier
       helps the user to avoid having very small source-line groups,
       and thus to avoid many expansion levels.

    o  TAB_RANGE=(t1,t2)

       The TAB_RANGE specifier indicates the range of tab values for
       which the adjustment definitions are valid. The default is
       (4,8). The second value must be at least twice the first value;
       both values must be positive. For example, if the tab range
       is (4,8), then LSE assumes that the adjustment definitions
       will work for any DEFINE LANGUAGE/TAB_INCREMENT value from 4
       to 8 inclusive. If you specify a /TAB_INCREMENT value outside
       the tab range, then LSE recomputes indentation to make the
       adjustments work.

       For best performance, it is recommended that you avoid
       recomputation by choosing a range that covers reasonable
       values. The numbers specified for the DEFINE ADJUSTMENT/CURRENT
       and DEFINE ADJUSTMENT/SUBSEQUENT commands must work for any tab
       increment value in the tab range.