There is no option for that.
You will have to first create a new menu of the type hikashop product list via the joomla menu manager. You can put temporarily the menu with the access level sepcial so that only you see it. Once the options are ok, you can move it to a main menu which is hidden (not displayed on your template) with the access public.
Then, in the hikashop options of the menu, you can set it to display the products as you need.
Then, once it's correct, you can edit the file you already customized to display the categories listing via the menu Display->Views. There, instead of having such link:
$link = hikashop::completeLink('category&task=listing&cid='.$child->category_id.'&name='.$child->alias.$this->menu_id);
You could use:
$link = hikashop::completeLink('product&task=listing&cid='.$child->category_id.'&name='.$child->alias.'&Itemid=X');
where X is the id of your products listing menu for the categories where you want a display in table layout.