Outlook Channel Pipeline - How to select Calendar

I've got multiple Outlook Calendars associated with my outlook e-mail. I have a Pipeline running that is triggered on a calendar event being added to my Outlook calendar; however it is only running when the event is added to my Main calendar and not to another calendar that my account has created. 

Is there a way to be able to have the trigger include all (or more than one) calendar associated with the Outlook account?

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Niraj Shah
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