To insert a merge field into your email please follow these steps.
1.) Place your mouse cursor where you want the merge field to appear
2.) Click the insert drop down menu on the left side of the toolbar
3.) Select the merge field that you want to use in your email
4.) Specify a Default Value to appear if the field is blank
The merge field tag will be inserted where you've placed your mouse in your email in the following format.
The merge field is the content to the left of the | character, the default value is to the right. Your recipient will see the data that appears in your list for the specified field but if the data in your list is missing the recipient will see the default value.