SQL Server 2012 added the Extended Events UI which made working with Extended Events session much easier. You no longer need to chalk up lengthy T-SQL scripts to spawn off your Extended Events monitoring session. The UI also provides you an option to view the collected data and perform groupings and aggregations for easier analysis.
The templates that you see while configuring an Extended Event session are located at “C:\Program Files (x86)\Microsoft SQL Server\110\Tools\Templates\sql\xevent“. When you export an Extended Events session, you will be given an option to export the Session as a Template to the following folder: “C:\Users\<user name>\Documents\SQL Server Management Studio\Templates\XEventTemplates“. The template is always exported as an XML file. Now when you create a new Extended Event Session, you will see the template under the user templates section in the templates view as shown in the screen shot below:
You can now choose to create as many templates as you want for your monitoring purposes. However, the template files have to be deposited in the above mentioned location so that Management Studio can show them to you while creating an Extended Events session.
The above blog post is a manifestation of a seemingly simple question asked by Naman Vadhera yesterday while he was exploring the Extended Events UI option.