Hi KJ
That's an interesting question, and I don't know the answer!
Here at the University of Reading we are using Xerte to produce online grammar lessons for international students. It worried me that there wasn't anything that students could take away and refer to after they'd finished a lesson. So we got into the habit of producing a PDF summary of the main learning points for each lesson, and we put a hyperlink to a summary on the last page of each lesson - that seems to work!
Best wishes
Jonathan Smith