How to create a scrollable inputfield using new UI

Hi,

I am trying to create a simple multiline input field with a scrollbar.

I did try what was propose on that old thread : http://answers.unity3d.com/questions/798599/how-to-create-a-scrollable-inputfield.html?sort=votes#answer-form

But I doesn't work. The input field is not working the same way as the Scroll View : instead of enlarging the text area, it delete what is outside of the input text area.

I was wondering how a such basic things could be such hard to do. Did I miss something ?

Thank you for any help