[FLOW3-general] More than one controller

[Stephen Bungert]

How do you render more than one controller?

I have an product controller and a category controller.

I want both on the same page, os that the categories can act as a filter 
for the products.

Do I have to create an instance of my category repository in my products 
controller, collect the categories and pass them to my product's view to 
be rendered?

Or is there some kind fluid tag for this?

Thanks for any tips.

Stephen.