I really like forms but would like respondents to be be able to refer back to what they answered and possibily add to it but I cannot see an option that would let them do that. It seems that once the form is submitted, the respondent lose access to it?
The respondant cannot refer back to their response and/or add to it once submitted. This is not something we currently support but you can add or vote on feature ideas:
If you need to add a new idea click "Create an idea" under "Actions" in the top right.