addition of dropdown navigation

[threesixty]

Hello all,

I am customising a site and cannot seem to figure out how to add a page to my drop down navigation.
I have created lots of pages that appear in my primary navigation, as I wanted, but how do we create the pages for the drop down menu?

I have a fairly good knowledge of code and have edited the template thus far without any real problems, the whole studiopress system seems great! But I really can't seem to find where or how I can add the drop down menu pages?

Any help would be much appreciated.

James.

Also, sorry if this has been asked before, but i've searched the forums and can't seem to find an answer on how to do this.