Yes you can! Within our studio there's an option to the right of your preview that allows you to edit your calendar dates.
From the your events tab you can add custom event dates to your calendar. The event name would be entered then the date adjusted using the date picker that appears after clicking in the field.
Added events are displayed in the order of occurrence and can be removed using the delete icon to the right of them.
|Under the your holidays tab is a list of major holidays for your country. If you don't wish for a specific holiday to appear on the calendar, you'd need to uncheck that event.
NOTE: After making adjustments to the events, you must click update calendar for them to appear on the calendar.