Add a Simple Way to Review and Practice Recently Learned Vocabulary

[alainravet1]

There is some overlap with the feature linked below.

Your request would require the words-to-show filters to be a little smarter to be able to detect the words that changed states during the lesson reading, instead of just examining their current state.

Add a Summary mode: show only the sentences with unknown words

When called in a lesson, it would display only the sentences with still-unknown words (blue and/or yellow) in context (the sentence) in a compact and efficient mode. When called in a course, it would do the same across all the - already opened - lessons.