How to record presence/absence of ILT partecipants

Summary

how to holds a custom fields for enrollments

Content

Hi all,

with Instructor Led training offerings, how can I record the presence/absence of each enrolled user?

There is a way that gives the teacher the possibility to record the presence of each partecipant?

I know that it's possible to add a descriptive flexfields for offering and course, but is it possible to add a custom fields to each enrollment?
The teacher o learning admin can manage these kind of information (presence/absence)? 

Thank you in advance,
Alessandro