1. Well there is not support available for standalone quizzes as of now of now in wplms students app .
2. There will different apps for learning paths and batches .
3. As of now there is not parents monitoring module included in theme as well as in app .
4. Sorry invite is not available as of now in app . Users can share the link of course with @username in buddypress activity .
5. Well to add your CRM chat you need to contact the CRM support for this if there product supports ionic .