add-submenu

add-submenu is a compiled Lisp function in `easymenu.el'.

(add-submenu MENU-PATH SUBMENU &optional BEFORE IN-MENU)

Add submenu SUBMENU in the menu at MENU-PATH.
If BEFORE is non-nil, add before the item named BEFORE.
If IN-MENU is non-nil, follow MENU-PATH in IN-MENU.
This is a compatibility function; use `easy-menu-add-item'.