How to Edit a Registration Form Question
As a result, if you need to change a question on your form, you will need to delete the question that you need to change, and add it again with your corrections. This in essence is the process to editing a question/comment. Delete first, then add again.
It is recommended that you mark the form "Inactive" if you are making changes to the form. You would not want someone filling out your form while you are making changes.
It is also recommended to not release a form to your website until you are confident that the form is in its final state. In the event that you have 30 people fill out a form, and then you have to change a question, you will loose the answers to the question that you delete from the form.
If you add a question after you have had 30 people fill out the form, you simply will not have an answer to your new question from the first 30 people who submitted the form.
Again, it is advised that you build your form and then test the form yourself. Once you are confident that the form is ready, you should then release the form to your website, by providing the form's unique URL.