Related Questions:
Can I create a Document with multiple Events linked to it?
How do I choose one Event to link to a Document?
Answer:
Create a Document from the Document tab or the Document Sub-tab on the Booking (if creating from the Documents tab, link the Document to a Booking)
In the "Linked Events" area, check the box next to the Event (or Events) you would like to link to your Document.
Fill in any necessary fields
Click Save
Additional Information
Linked Events can be changed at any time when Editing the Document. See this article for more information!