The email footer can now be edited similarly to a Text component. This provides you with more options on how to format your footer information.
The contact information used by the footer is entered into the fields on the right-hand pane, accessible after you click into the footer component. This information is required to conform with anti-spam laws and so these must be included with every email.
Use the merge tags control to add the tags into the footer.
Once added to the footer, the merge tags can be positioned and formatted as you would like. You can use the various editing tools to format your footer content and merge tags.
This 3-minute video will explain further: