Under filter dropdown box in products - please add show products from category and its nested folders.
Jul 10, 2014
Such function was added before.
Please look at core logic of Store Manager for OpenCart. - select any action by click on (products, categories etc....)
if you have
-- cat 1
-- cat 2
Select all folders and....
Program shows you selected categories when you choose 3 categories (Root, cat1, cat2) - watch video example http://screencast.com/t/rFRNNz8bm
Please use Ctrl + mouse and select necessary folder to show -