List of generated codes

First of all I’d like to thank you for your work! It’s a very usefull plugin!

And here is the question:
I’ve installed the plugin, uploaded the files, etc. but when I clik on GENERATE CODES (randomly) the system just confirms that they have been generated, but I can’t find them. I would need that list so I can distribute them. Am I missing something?

Thnk you so much for yout help!