You can make use of EasyEditor's document manager to do this.
Follow these steps (in this example we'll assume your working with Outlook but you'll be able to do this for various other calendar apps too):
- Create your event in your Outlook calendar
- Open the event in your Outlook calendar and click File > Save As, ensure 'Save as type:' is set as 'iCalendar Format' (.ics file) and then click Save
- Edit your campaign in EasyEditor and upload the .ics file as a downloadable link via our document manager
Recipients will then be able to click on this link in your campaign to download the .ics file, open it and then save the event to their calendar.