NeetoCal allows you to add multiple calendars. Let's say that you have integrated your business calendar with NeetoCal. However, you don't want to have a meeting when you have something on your personal calendar.
Another case could be that you are working on three different businesses. You want to ensure that your availability takes into account meetings from three different calendars.
NeetoCal supports adding new calendars.
How to add another calendar
Navigate to Settings.
Select Google Calendar under Calendar Integrations.
Click on Manage Google Calendar.
Click on + Add calendar to add another calendar.
Calendar to which new meeting should be added
Now that you have two calendar don't forget to choose the calendar to which new meeting should be added.
Check all calendars that should be checked before booking a meeting
A calendar can be attached to many other calendars. Put a check mark next to all the calendars which should be checked by NeetoCal before booking a new meeting.