I've got it. It's handled just like anything else you want to add to a custom iso. The easiest way I found was to create the menu items in your existing install then copy the file(s) and directory structure from
Code:
$HOME/.config/menus/
to your includes.chroot folder inside your build(live-build-config) folder. There is an option to show hidden folders if your doing this from the desktop.
Then copy the file(s) and directory structure from
Code:
$HOME/.local/share/applications/
to your includes.chroot folder. When it's all said and done you should have copied at least one ".directory" file and one or more ".desktop" files.
Finish building the iso as normal and your done.
I used this to add the recordmydesktop GUI (gtk-recordmydesktop) to the media capture menu (after adding it to the iso) inside the Kali Linux menu.
I would like to say thank you to the Kali community. This may be my first post but I have resolved many issues(mostly caused by me or lack of updates) with help from the forum. I hope this will help someone in the future.
j7