If you want to track your students' activity and mark them as present/absent for every lesson, there is an option to do it.
From Group - Settings - Learning activate Attendance switcher.
Scroll down and Save your changes. Then you will see the attendance tab activated.
There you can see your student’s list with their training dates.
To mark your students attendance, hover the mouse over the date you want.
Click on Mark Attendance and choose who is absent/present.
Click OK and see the results.