The procedure is the same:
From the Mailbox/Folder view navigation area, select Add.
In the first field type the name of the Folder/Mailbox you are creating, then press the Tab key or use the mouse to navigate to the Mailbox Type field. Note: Do NOT press the Enter key or the folder will not be created and you will have to return to step #1 of the process.
Using the drop-down box, select the type of Mailbox/Folder. Keep the default setting of "Mailbox." to create a Mailbox or Folder. Choose "Calendar" to create a new calendar.
Click the Create button to complete the process.
Note: Once the new Folder/Mailbox or Calendar has been created it can be shared with others using the steps in the section Giving Others Access to your Calendar.