I think this has been mentioned before, but it would be really useful if users could save phrases/expressions rather than just isolated words.
You can already do this by clicking the star that is to the right of each individual subtitle in the video or list view. Sadly there isn’t a feature where you can highlight a select group of words. Only the groups that are set by the programmed subtitles.
I agree with you. I would like select a group of words and save them.