You can create Custom Fields that are used to save custom field data for your Contacts and for Lead Capture Forms. Custom Fields are useful when you want to capture unique details about your Contacts. 

From the admin dashboard navigate to the "Contacts >> Manage Contacts >> Custom Fields" page.

To Add a Custom Field:

1. Enter a label for the field in the "Field Label" field.
2. Select the checkbox "Required" if you want to make the field mandatory. When this field appears in the form, the user must enter a value for this field.
3. Click the "Save and Continue" button. The custom form field details appear in a list.

To delete a Custom Field, click "delete" in the Action column next to the Custom Field you want to delete.