When you set an event, it automatically drops it on the calendars of all invited attendees. That’s why you should make sure to edit the event title and note before you send it off. After you start creating the event, type in what you want to name the event (AKA how it is displayed on calendars.) Then hit enter on the "title event XX" option.

To leave an event note, type the note in and then select include event note. These changes should both be automatically reflected in the preview draft.