Deleting schedule

I entered my timetable which is a two week cycle. I manually pasted alternate weeks but into term 2 the sequence was wrong, . I want to delete all the copied cycles how can I do a mass delete?

You can create the sequence for 2nd term and it will overwrite the current one.
If you still want to erase it you only need to tap on the 'delete calendar days' button shown here

www.idoceo.net/index.php/en/planning-art...ates-in-the-calendar