Adding a shortcut in the PortableApps Menu

Hi,

My registration to this forum is very new (few minutes).
I'm from France, so please forgive my approximate english.
I use portable applications since very short time.

So, my trouble today is to add a shortcut in the left part of the PortableApps Menu.
Especially, I would like to launch the Thunderbird address book.

The syntax of that command is : ThunderbirdPortable.exe -addressbook

Is there anyone who knows how to proceed to have this command in the left part of the menu as shown in the picture link below ?
http://www.zimagez.com/zimage/contacttbportableappsmenu.php

Thanks in advance for your help
lool