universal scriptability
Auto Highlighting of Evidence Text via line numbering system (which authors can turn on/off).
My thinking is this could be very useful as part of new scaffolding for user. If user is presented with a question and they get it wrong, the system can direct them toward auto-highlighted Evidence text. Also, authors of a project should be able to specify what text they'd like highlighted in response to a wrong answer, by referring to a visible page/line number system. - Matt Fishbach