One of the features that makes your Merchant Console adaptable and customizable is the Custom Fields option. The custom fields can be used to create space for all kinds of data that is specific to your business or industry. Simply click on the "Edit Custom Fields" link and you will be taken to a form with plenty of space for as many custom fields as you like.
Enter the name of the field you wish to add into the form (i.e. Customer Benefits or Miscellaneous) and as soon as you save your fields, they will appear under the Custom Fields heading in your customer records below the general customer information and above the customer's billing history.