Start with the visual form editor. Add extra fields where you want them just by pointing and clicking. No need for coding.
Once you're done, simply save your changes. That's it, your form is ready to be filled out by your visitors. No need to upload or paste anything.
The input from customers will eventually be attached right to the order information inside Ecwid. No need to go elsewhere to retrieve it.
If you decide to continue using CQ after 7 days of free trial, monthly charges are automatically included into your Ecwid bill. No need to pay separately.