You know how in some sites when you hover over a menu a list of submenues drop down for more selection. How do you do that in this software ?

2 ways using CoffeeCup stuff,
a free dhtml menu builder
http://www.coffeecup.com/free-dhtml/
and the flash menu builder
http://www.coffeecup.com/menu-builder/

After you build your menu, add the menu code to your pages using the HTML editor or VSD[visual site designer].

There are scripts on the net as well, depending on what you need to do.
The subject of Menus is a big one, since all web sites depend on them for usability.

Larikn, and Dave,

I would not advise anyone to use the free DHTML menu builder any more. Read my comments to the latest thread in the DHTML forum at the bottom of the forum list.

There is a better option; in the HTML Editor you'll find a built-in CSS menu maker. Create your menu, and if you are a VSD user, you can copy/paste the code into VSD and use the menu there too.