How can I redo some lessons without having to reset anythint

If it has been a while that I haven't practice a langiage and I want to do the old lessons, how can I do it? Before the update I was able to look all the lessons and choose if I wanted to redo and old one or the new one, but now it doesn't seem possible... I don't want to reset the tree, what can I do?

October 4, 2018


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