You can go in the menu Display->Views and edit the view file listing_table. There you can change the code:
$this->params->set('show_quantity_field', 2);
to:
$this->params->set('show_quantity_field', 1);
I went to Display/Views/edit listing_table on the template that I use for the frontend (j51_awaken) and the display is of the general template preferences. Then I tried clicking on the listing_table for atomic and found the php code you mentioned. Looks like I may have to go into the php of my template to make the edit. Any idea of what file I need?
You're probably missing the tag attribute to hide/display the quantity fields in your product tags.
I would recommend to edit your articles and check the tags so that they have the correct attributes.
