I want to layout my navigation as follows

option 1
option 2
option 3
  sub option 3.1
  sub option 3.2
option 4
option 5

But so far have only been able to achieve a layout such as

option 1
  sub option 1.1
  sub option 1.2
  sub option 1.3

etc

In other words I want to have a list of options such as
Home
Product 1
Product 2

Where users can rollover Product 1 and get sub topics

However at the moment all I can achieve is a disply like
Home

Where you then rollover Home and get sub items which in turn can have more sub items.

Is there any way to achieve what I am looking for or must all items be contained within Home???