Menu problem!!!

Right, so heres my problem:

I am creating a new website using the Pagelines Plaform Pro theme. I am trying to create a menu for our news site which has this as the main menu:

NEWS – EVENTS – CLASSIFIEDS – ETC – ETC

I need a drop down menu under news with CATEGORIES as follows:

LATEST NEWS – FEATURES – EDITORIAL – LETTERS – TEXTS – SPORT

When you click on any of these categories, for example say latest news, I want to display the latest news posts from all three of our newspaper categories latest news.

I also want a sub menu in the category page which links to view just the news from a certain paper as follows:

ANDERSONSTOWN NEWS – SOUTH BELFAST NEWS – NORTH BELFAST NEWS

When you click on one of these I then want it to show up this menu again:

LATEST NEWS – FEATURES – EDITORIAL – LETTERS – TEXTS – SPORT

Only this time when you click on them it just shows the posts from the newspaper category its in.

Any help??

Thanks Chris