Variable: msb-separator-diff
msb-separator-diff is a customizable variable defined in msb.el.gz.
Value
100
Documentation
Non-nil means use separators.
The separators will appear between all menus that have a sorting key that differs by this value or more.
Source Code
;; Defined in /usr/src/emacs/lisp/msb.el.gz
(defcustom msb-separator-diff 100
"Non-nil means use separators.
The separators will appear between all menus that have a sorting key
that differs by this value or more."
:type '(choice integer (const nil))
:set #'msb-custom-set)