@fthomas, Yes, there is a shortcode to get a ‘fancy’ display of a product for the ‘buy now’ option.
[wp_eStore_buy_now_fancy id=1]
1 is the product ID here. Please note that all the available shortcodes are listed at the following URL. You can download a PDF file for your reference:
The plugin doesn’t have any download restrictions. on my server I can simultaneously download multiple files at the same time.