Support Ical format

You can already import the ical files. Just go to the calendar and click import. Then you can choose the ical file.

You can only export when you have selected a category. I was confused at the beginning as well.. Choose a category of the events and then a new button will appear on top of the sidebar on the right side. It has the same sign as the import one. Click on it and you will be able to download the events of that category.