Related Questions:
How can I add attachments to my emails
Adding an attachment to an email
Environment:
Event Temple Web App
Procedure:
Select Mail tab from left-hand sidebar
Select + New Email Button at the top of the Mail page
Fill out relevant fields and body of the email for the email you would like to send.
At the bottom of the window, Select the Attachments icon
Select the attachment that you would like to add to your email
Select Send