You can specify which Delivery Feilds you care about - and what you do with that data here:

When on that page you will see something like this:

Which means you can control the following

  1. capture the information online? (and is it mandatory) - you will also need to enable this Feature and Customization.
  2. which delivery fields appear in your printouts

you can also choose to customize the display name of your delivery fields.