Please refer to the manual:
1) Prefilling survey elements - manual.limesurvey.org/Workarounds:_Surve...ling_survey_elements
2) Enable token-based response persistence - manual.limesurvey.org/Survey_settings#Tokens
1) Prefilling survey elements - manual.limesurvey.org/Workarounds:_Surve...ling_survey_elements
2) Enable token-based response persistence - manual.limesurvey.org/Survey_settings#Tokens