Normally when we finish a lesson there is a warning which says that finishing the lesson will move all blue words to known. Usually i then have to go back through the lesson and then decide whether i know the words or not, or just ignore the warning and click finish lesson anyway. But it would be nice, instead of having to go back through the lesson looking for the blue words, where a list of these blue words is presented at the end of the lesson where you can fairly quickly decide whether these are words worth learning, or words that dont have any real use (for example, Linq sometimes registers place names, or character names as new words).
Not sure how hard this would be to implement. I know there is an option to finish lesson without moving words to known, but i dont like using this feature as it actually can make you skim over stuff that you dont understand.