Hi. Thank you for every great support till now.
Do you have any idea about this? We use template courses. We add all activity and all resources to this template course using link to the file. After that we make a copy of this course and enroll the students. We are using repository in moodle to link our contents (movies,books and ...) to course. But when we make a copy of course size of new course show that every link resources completely copied with original volume. For example when i create an activity file in moodle and link a 500Mb movie from repository to it; if i delete this movie this file will loose and i can not use it anymore because the file linked to a deleted file. But when i copy this course, if i delete that movie i will access to it information in copied course and it isn't linked to original file. It made a duplicate from original file. In fact it made a copy of this activity not link it to repository. so when we make 3 copy of this course 1500Mb will add to moodledata. And moodledata growing too much. What i can i do?