Please see previous topic.
You can include and require fields as you like. If fields are marked as required, the empty submission of those fields will be prevented.
You can add up to 20 custom fields in your form.
You can change the field type by following;
You can also customize BUY button.
Or you can select a button from our button library.
If you want to customize your header, you can add your own HTML.
Finally, you can preview your form.