As I investigated earlier no, I’ve suggested that feature in March thru the website, didn’t get any response yet.
Here is the copy:
Hi guys,
I have one question for you, or probably proposal for a new feature.
Do you have any kind of certificates after user completes some of your courses?
If not, have you ever thought about that?
As a developer I know that is not hard to implement and people always like opportunity to share their achievements.