Identify my own revision items
Duolingo does a good job of identifying areas where I make mistakes or I have weaknesses, but it would be good if I could:
1 - tag my own areas, priorities so that I could see the item again when I chose, or have Duolingo present variants of the problem, sentence, word, eg present on demand
2 -tag items that I would like to return to myself and consider them. At the moment the only way to do this is by following the discussion.