Thanks for providing the interesting extension.

I have created one survey and added some multiline text boxes.

Unfortunately their size is very small. It should take full width of screen.

You may see examples on https://idea2company.eu/index.php/services/survey

In addition,

Is it possible to create forms like this example to save space?

http://tryit.lesarbresdesign.info/en/form-with-icons

MfG

Vikas