Not sure what you mean with "duplicate the current design".
While a survey is active, many things in the survey can not be changed (I think it is adding questions, adding subquestions, adding answer options, etc.). I think you can make smaller changes like changes to the text (but be aware, small text changes can have huge impacts on responses!).
So you always, always, always should test your survey very thoroughly before going "online" (e.g. start the data collection), because if you find a problem, you might loose the previous responses collected. This is purely non technical but has to do with the validity of your data. Even small changes to a questionnaire can render previous answers useless.
That said, there is also a technical issue with Limesurvey. Once you deactivate a survey all collected responses so far are being "archived". This means they are not available through the interface anymore. There are ways to get them back (they are stills stored in the database), but it can be tricky sometimes.
Once you reactivate the survey you might be able to import the old answers, but that depends on the level of modification made.
So if I need to make changes to a survey that was active before, I would always do an export of the responses first, just to be on the safe side. You can always join the different datasets in Excel later, if you think it is OK to analyze the previous answers with the answer collected after the changes (which is often not recommendable).
I hope now you can answer your own question.
Help us to help you!
- Provide your LS version and where it is installed (own server, uni/employer, SaaS hosting, etc.).
- Always provide a LSS file (not LSQ or LSG).
Note: I answer at this forum in my spare time, I'm not a LimeSurvey GmbH employee.
The topic has been locked.