How do I add an existing Email Configuration template to a Trip Group?

To add an existing Email Configuration template to a Trip Group, please go to your Account Settings > then select Manage Trip Groups as seen below:

Locate the Trip Group you want associated to the new Email Configuration template you've cloned and click on it to view the Trip Group's settings.
 
In the Trip Group's settings page, click the button that reads "Customize Traveler Trip Email Configuration" on the right-hand side to toggle it "on" as seen below:
 

 
A drop down list will appear on the left hand side of that same section where you can select the Email Configuration template of your choosing:
 

 
Please ensure you're ready to go live with the template before adding it to the Trip Group.

Lastly, you'll want to make sure Traveler Trip Alerts and/or Trip Reminders are enabled in the bottom section of the Trip Group's settings page:

 
Once you're ready to go live with messaging for this Trip Group, click Save.