This file defines which custom menu entries will be appended on the Window Options menu when this menu is called by titlebar button 1. This is for example used by all known terminal applications to implement menu entry. By default, Watch Errors and Fvwm Diagnostic Console have appended appropriate entries for conveniently call each other. Also, some of the known File Managers has this entry for opening new window of the same type. Entries in this file are the following comma separated values (syntax):
X11 Window Class
X11 Window Resource
Menu item title (and optionally keyboard shortcut after two TAB's)
FVWM Exec or function command, module or action to be executed
This file exists as the $NSCDE_DATADIR/defaults/AppMenus.conf, but it can be
extended by creating and writing $FVWM_USERDIR/AppMenus.conf file.