A second (or third) calendar comes in handy when you want to keep your business and personal lives organized separately. You can organize your BlackBerry calendar using the core application that you are probably already familiar with: email. Most BlackBerry smartphones, with OS software released in 2009 and later, have the ability to display multiple calendars.
Associate your BlackBerry with at least two email addresses. If this is already done, proceed to Step 2. The Setup Wizard, which came pre-installed on your device, will walk you through the process of email setup.
Each email associated with your device gets its own separate calendar. For instance, you may wish to use your work email for your work calendar and your personal email for your personal appointments.