--secure, --link, --cumulative, --heapPrimitives and --textReferences (thanks to James Quacinella (@jquacinella)).--run, --curInstr and --verticalStack.Link for documentation, code, issues, PRs,...
https://github.com/kikocorreoso/tutormagic
Other options
nbtutor: https://github.com/lgpage/nbtutor. It is a more polished and better integrated notebook tool.
Audience
Education.
Kind regards.