Feedback: Allow notes on downloads page

I have a WordPress slider plugin of which I have purchased multiple (15 so far). Each copy I register to the website I’m working on. Some sites are now defunked or not live for other reasons so I should be able to use that license on another site. But there is no way to know which license is currently registered to which site.

It would be great if you could give us a way to make a short note on each purchase, just 30 characters would be enough, so we could keep track of these. Or, alternatively, show the registered domain on the downloads page. I realize there are technical issues with coordinating between the author and the downloads page. Even so, it would make so much sense to give us such an option. IMHO.