The new content-element holidaycalendar allows a new workflow to lead your dates into a calendar.
1. List your holidays and other periodic dates in a CSV-file with excel or calc.
2. Upload the CSV-File in the new content-element  via FAL, via EXT-path or via http-request.
3. (Optional) Replace the predefined javascript-framework TUI-calendar with your own javascript-calendar-framework by changing the pathes and the mapping in the dataprocessing
