You can easily keep others in the loop by simply BCCing them on your correspondence. 

1. Start by composing an email in the Announcements pane. 
2. Under the "To" field, you will be able to type the email into the "BCC" line.

3. When you click "Preview", you will now see that email in the area above the body of the email.

When the BCC is sent, tokens will not populate, and the BCC copy will display the token in curly brackets.