Create different lists for different subjects?

Hi there,
I am creating an experiment that involves different lists for different participants (i.e. each participant receives a different set of tasks). How do I control this in the builder, or do I need to do that in the coder? (I am aware that the way to do it in Python is to change the list number before starting the experiment; however, I am kinda new to programming and I am not that familiar with the coding…)

Is there anyone has a suggestion for this? Thank you in advance.