There are several different field types that can be added to any Custom Form. Each field type has properties to allow you to collect many different types of information.
To edit any existing Custom Form field, select the Field. To add a new Custom Form Field, click "Create Form Field".
NOTE: A Custom Form Field cannot be deleted if any Submitted Form
has
been captured that includes data for this field. To delete a field, you
must first delete all the submitted form data for this Custom Form.
(This limitation is not true for Product Forms, which can be
modified at any time, without deleting their corresponding submitted
Orders.)