Adding a title to this parameters can be great, but don't know really what string to put ...

I think we must have someting like this:

• Anonymized responses? / help : if you set this to yes : no link between token table and survey table can be done. You can not use token information in your survey.
• Enable token-based response persistence? / help : if you set this to yes, user can open survey multiple times without submitting. They have their old answer reloaded. If non: user start a new survey each time they enter the survey. The Anonymized responses? need to be NO.(NEED BETTER sentence)
• Allow multiple responses or update responses with one token? / Help : Attention : this setting have to behaviour : If Enable token-based response persistence? : the user can update theur answer even after submitted. If Enable token-based response persistence? is no : the user can do a new survey without use left control.