Ability to hide and show questions when editing questionnaire

Is your feature request related to a problem? Please describe.

The experience of editing the questions of a questionnaire tends to be quite uncomfortable when the questionnaire has more than two questions.

Describe the solution you'd like

If questions could be collapsed to occupy the minimum space, showing only title and move up/down buttons, the experience would improve considerably.

Additional context

It is important to note that as part of this feature, the question title should be the question statement instead of e.g. "Question 3"

There's a bug already reported in Github about "Move up" and "Move down" buttons not being updated after dragging questions to reorder them.

Could this issue impact on users private data?

Not at all.