adding batch-download button buttons code codes cut generate item number product products

Is there any way to batch-download button codes for the 70 products or must one cut and paste each product's button code?

If you get button code for one product you will see that the only thing that you will have to change to get buttons for other products is the item_number (&i=... part). Since you can set the item number while adding your products, you can simply generate the button code
yourself.