A. 1. Open Google Calendar on a web browser. 2. Click on the '+' sign next to 'Other calendars' and select 'Create new calendar'. 3. Fill in the details and click 'Create calendar'. This will allow you to create a custom calendar that you can manage separately.

B. 1. Use Google Calendar's 'Add a friend's calendar' feature to subscribe to other calendars that may be relevant to you.