Is there a way to undo progress in a particular skill? I don't want to reset the entire tree, but bring a single skill back to a crown level or two.
This is because I sometimes to exercises without paying as much attention to them as I should, or I forget what I learnt, or only made it through via sheer luck. Having a skill at level 2 or 3 when I barely understand it at all makes it harder to learn (new exercises are harder) I also makes it much less likely that I'll practice it when I look back through my tree and see which skills are lagging behind.
No, there's no lesson-specific reset that I know of. I suppose you've seen the Practice button.
I have, but that just practices anything right? Sometimes I'd like to have to have easy questions on a particular topic.
I think I'm slightly confused then. The two things I know of are 1) Doing the lesson which levels up crown levels 2) The overall practice button for the language. 3) Passing a test to unlock skills/levels Is there something else I'm missing?
There's two practice buttons: one applies to the whole course which you'll find it in the web-app on the far right, underneath your Daily Goal. Then there's also a practice button for each lesson which you see when you click/tap into a single lesson.