How to add a Quantity Selector Button to the Featured Collection on the Homepage - Dawn V2

[JoshuaStanley]

Hi all,

I need some assistance. I am using Dawn V2 and would like to add a Quantity Selector Button to the Featured Collection on the Homepage. There's a theme based Quantity Selector  button for individual product pages. I want to insert this option on the homepage.

Please see photos below. 

Any help or a point in the right direction would be massively appreciated!