DESCRIPTION
The function set_menu_opts sets all the given menu’s option bits (menu option bits may be logically-OR’ed together). The function menu_opts_on turns on the given option bits, and leaves others alone.
The function menu_opts_off turns off the given option bits, and leaves others alone.
The function menu_opts returns the menu’s current option bits.
The following options are defined (all are on by default):
