Added this option to the plugin… now you will be able to display a counter for any product.
The following shortcode will display the sales counter on a post or page (the product id is 1 in this example)
[wp_eStore_sale_counter id=1]
The following shortcode will display the available copies counter on a post or page (the product id is 1 in this example)
[wp_eStore_remaining_copies_counter id=1]