activities calendar events lost on restored courses

My "editingteachers" are not allowed "moodle/restore:userinfo" and when the courses they restore lost the calendar events refered to activities like quizes that are imported. I don't think the calendar events was "userinfo". Is the teacher edit the settings of every activitie and save, the events are inserted on the calendar.

How can I import the activitie course calendar events without enroll users on the resotre? Do you know some way to get all the calendar events in one click?

Thanks.