How To Add "buy Now" Or "add To Cart" Button On Category Listing Page

Multi-Vendor Questions
1

Does anyone know how to add a "Buy Now" or "Add to Cart" button on the Category Listing Page? (see image below)

CatListPage.JPG

2

design/themes/responsive/templates/blocks/product_list_templates/products_multicolumns.tpl

replace 

show_add_to_cart=$show_add_to_cart|default:false

with

show_add_to_cart=$show_add_to_cart|default:true

Then clear cache

(!) Not tested

3

Thanks - I made the changs as you suggested. Unfortunately it didn't work

4

Did you clear cache? It works on my local installation. Issue can be also caused by 3rd party theme