Use the following shortcuts to get the most out of the calendar...
• Double-click any blank space in the calendar to begin creating a new event.
• Double-clicking on the clear space on any day also brings up an option to jump to that day on the Day tab.
• Click on the little triangle at the upper right of the side bar to hide it and make more room for the calendar itself.
• Option/Cntrl-drag an event to duplicate an event.
• Drag the green plus button from the lower right to any space on the calendar to create a new event there.