I put all me questions in a question list to make the questions required, but enable to skip questions temporarily until submitting.
However, Now the questions list generates a list of all the questions at once and scrolling vertical is needed.
I would like to know if it is possible to do the same regarding the skipping, but than showing one question of the question list each time?
There’s no specific way to allow this per-question, but instead of having a validation condition on each individual question, you could instead have one final question in your form which has a display condition which only makes it visible if all questions aren’t answered, and a validation condition of false(), which would only allow the user to proceed if all questions were answered.
This could be quite confusing for your users, however, since they would need to scroll backwards to identify the questions which still require an answer.