I am new to limesurvey. I need to create a website that grants a token to the user after the user logins. This token will be used to uniquely identify the user and prevent that user from resubmitting responses to the surveys after the initial responses to them are submitted. Then the user launches the surveys from our website directly after receiving this token. The user does not need to open any emails in order to obtain the token and launch the surveys. Is it possible to implement such a system using limesurvey?