Generate attributes for the participants database from answers to a survey - by: seancon1

i see on manual.limesurvey.org/wiki/Central_parti...el%29_Development/nl it says "Generate attributes for the participants database from answers to a survey"

i am looking for a way to accomplish this scenario

1. create a "Welcome Survey"
2. invite users to take the survey
3. add the user to the central participants database with their answers as attributes.

if this is not possible then could i create my own form and insert the form values in to the central participants database, is there a method for creating the participant_id or possibly an API to achieve this?

this would not need to add them to a specific survey but to the participants database for future invitations to surveys.

thanks

Sean