The Calendar Wizard is a plugin, available from the Tools menu. It aids in quickly generating HTML calendars using tables.
In the wizard's first step, Calendar Setup, you pick the month and year of the calendar you'd like to create. You also can set options such as the size of the calendar (small, medium, and large) and whether or not to make the day cells a fixed width. Once you are finished setting up the calendar, press the Next button to proceed to the final step, Calendar Preview.
This step displays your calendar as it will appear in a browser. Press the Finish button to create the HTML code for the calendar in the current document.