Sorry for the delay in answering. We have a large number of requests these days (the dev team didn’t work during the weekend).
There is no solution, right now, unfortunately. Your request is in our task-to-do queue, and you will be informed once a solution will be found.
If you have any other questions, submit them via the new topic – https://www.8theme.com/forums/xstore-wordpress-support-forum/ and you will get answers there.
One standard license is valid only for 1 project. Running multiple projects on a single license is a copyright violation.