This is an idea that wasn't meant to be released until next year, but an Envato template author enquired so I put it on FF.
The nuts and bolts of this is that authors on the Envato market who currently sell templates through a basic AEP file can license Dokyu to deliver their templates through an installable ZXP extension. The license is essentially white labeling, so they are able to retain their branding so that the customer assumes the entire product is owned by the author they purchased from.
So why would an author want to do this? Here's the long answer: https://drive.google.com/file/d/1BpGuRO_-0TNf4XuVNlMUXggrynQ3Q4HA/view
The short answer is a combination of the following: