I also want to reset the lessons I completed a few years ago, removing all my earlier answers so I can start each lesson afresh. Programmatically, implementing that option should not be too difficult, although perhaps maintenance funds are limited. Still, being able to reset a given lesson (which would be adequate and even a boon if you want to review only one particular lesson) would be a great boon. I'd contribute toward a fund to support this change.

Leisureguy:I also want to reset the lessons I completed a few years ago, removing all my earlier answers so I can start each lesson afresh. Programmatically, implementing that option should not be too difficult, although perhaps maintenance funds are limited. Still, being able to reset a given lesson (which would be adequate and even a boon if you want to review only one particular lesson) would be a great boon. I'd contribute toward a fund to support this change.

I doubt the admins are reading these messages, so you better contact them, see the contact page, https://lernu.net/kontaktoj.