What about making your own menu definition file? Take the original /etc/menu/fvwm file, copy it to a new name like /etc/menu/fvwm-selfmade and modify it?
This is what I have done for my Debian packages like tdfvwm-menu tdfvwm-sidebars tdfvwm-icons ... Since I have a dispute with my ISP about my DOS attacked servers, my sites are currently offline. I will try to get another ISP next year (I am currently jobless and have no money to setup a new server which cost 40€/month) and the you will find again http://www.debian.tamay-dogan.net/ and especialy http://devel.debian.tamay-dogan.net/ where you will find all of my developments and debian packages. Greetings Michelle -- Michelle Konzack ITSystems GNU/Linux Developer 0033-6-61925193