How to set field order using enter key?

Can you please provide further information regarding your concern? Do you mean you want to organize the order of the fields on your form using enter key? Unfortunately that is not possible. However, you can organize the order of the fields while on your form builder. To do so, you can use the Manage Multiple Fields feature. Simply follow this guide to do so: How to manage multiple fields.

If you are referring to a different issue, please let us know so we can better assist you.
Regards.