Sorry, and back we are into the "not understanding" mode.

What do you mean with change source code? The source code of Limesurvey to implement a loop feature? I wouldn't want to do this, if you need to ask where to start.

Engineerumair wrote: If I can be able to have this by changing code, can you please let me know the starting point to start with and I could be able to know which module should be changed.

If you want to develop a loop feature for LimeSurvey, you should start by reading the code:
github.com/LimeSurvey/LimeSurvey

You can take a look at my feature request about loops from 2016:
bugs.limesurvey.org/view.php?id=11687

Or the feature request from 2013:
bugs.limesurvey.org/view.php?id=7978

How many hours of coding can you invest?

I meant to develop myself, because it is open source everyone can code but before coding someone must have domain knowledge.


How to add custom attributes to token table, using classID and participant id?

Engineerumair wrote: but before coding someone must have domain knowledge.

I'm aware of that. That's why I asked about the hours you can invest. The approach to acquire domain knowledge might differ. Asking for "using classID" is totally unrelated to LimeSurvey codebase.

Since you mention "adding custom attributes to a token table" a generic looping feature seems to be not your development goal.

Let's wait if a developer has the time and the motivation to point you in the right direction. Whatever direction that might be. Personally I would recommend to join or open a feature request to raise awareness and than offer that you do the coding.

What timeframe is on your mind? When do you want to start your survey?

Thanks Jelo, I also requested for the feature but someone replied it could be version 5 and I also didn't find solution from your request.

I

Thanks Jelo, I need to start survey with in 5 days.

I can spend 3 to 4 hours daily on it.

Engineerumair wrote: Thanks Jelo, I need to start survey with in 5 days.

I can spend 3 to 4 hours daily on it.

Then I would discard the idea of implementing a loop feature into the Limesurvey source code and rather think about the proposed alternative approaches above, because i don't think a loop feature can be implemented in 5 days with 3-4h daily, especially as you still need to get familiar with the code base of Limesurvey.

So I would rather stick to the built-in features and see what you can do with that. Or find a survey tool that has a loop feature already.

A solution can be usage of gitlab.com/SondagesPro/QuestionSettingsType/questionExtraSurvey

This let you create a question linked with another survey. User see the list of survey linked, can edit or create new one.

No free support on this plugin !