WooCommerce Advanced Quantity Plugin

I am using the WooCommerce Advanced Quantity Plugin and after installing it I saw that it doesnt work properly with the Enfold theme, i.e. does not work with the step value. It seems the problem is that it does not hook in to the right WooCommerce function with the plus and minus buttons. The problem seems to be in the woocommerce-mod.js file, line 27-34.

minus.on('click', function(){
    var the_val = parseInt(newNum.val(), 10) - 1;
    the_val = the_val < 0 ? 0 : the_val;
    newNum.val(the_val);
});
plus.on('click', function(){
    newNum.val(parseInt(newNum.val(), 10) + 1);
});

What is needed to apply the woocommerce_quantity_input_args filter instead of +1 and -1?

Thanks