When we say 'addition contact fields,' we're referring to contact fields not configured by default in Freshsurvey. You can check the list of contact fields already configured by going to Settings > Contact fields.
To add an additional contact field to this list:
1. Click on + Add field at the top right corner and select the type of field you'd like to configure
2. Your new contact field will be added to the bottom of the list. Give it a name and edit the syntax if needed. You can also choose to make this a mandatory field.
3. Hit save to add the contact field. Freshsurvey allows you to add up to 20 more contact fields, above the nine default fields