I have made some research but I didn't find responses to my question.
I am going to make a survey by using several array questions like this one:
Question: "Note this business cases from 1 point to 3 points"
- Business case 1
- Business case 2
- Business case 3
> My problem is that I would like to force the user to select only once "1 point", once "2 pts" and once "3points".
(The goal of the survey is to rank the business cases and I prefer to use the array question. Users will often vote by smartphone and the display of ranking question is not user-friendly, even if I have a good template: janus_mobile).
Thanks a lot for your help, I hope it was enough clear.