If you have multiple calendars in the My calendars section, you can designate one of them as the default calendar.
The default calendar is the calendar where new events are created and where event invitations are received. The default calendar always appears at the top of the My calendars list.
To set a calendar as the default one, do the following:
1.Point the cursor to the calendar line and click on the button that appears.
2.In the form that opens, move the Default calendar switch to the right. The calendar settings form will close, and the calendar will move to the top of the account's calendar list.