Showing articles from subcategories, too?

[chrisredfield_0]

Hi!

 

My Shop is built the following way:

 

-category 1

--category 1.1

---[articles]

--category 1.2

---[articles]

etc

 

 

is it possible to show all articles in subcategories when customers click at category 1?

 

that means clicking on category 1 should show all articls from category 1 and below (1.1, as well as 1.2)

 

 

thanks in advance!