How do I add thing to Applications Menu

[Kipton Moravec]

I have my Ubuntu Up and running, but I have found some other tools that
I would like to start from the Menus.

Where do I find the documentation on what to put where, to be able to
start a program from the menu?  Applications->Applications menu has only
GNU TeXmacs. I would like to put other programs like the gEDA tools,
Macsyma, etc. under that menu item.

I am able to read the manual if I knew where to find it.

Kip
-- 
Kipton Moravec <kip at kdream.com>