Expanding Textfield in Adobe LiveCycle Designer

I've got an urgent problem with Adobe LiveCycle Designer and I really could use some help. The problem is that I'm trying to get my textfield expandable, but whatever I try, it's not working. What I'm trying to get done is that you can fill in a textfield, and when there is more text than the size of the field, the textfield expands to make the text fit in the field.

I tried a whole lot of things:
placing the textfield in a subform
expand to fit (height)
allow multiple lines
allow page breaks
flowed/positioned
etc.

The strange thing is, that no matter what I try to adjust, I can't change anything in the pagination tab. Maybe that is the problem, but I don't know what to do, to change that.
In the examples of Adobe itself (Purchase Form) is an example of a textfield that sort of behaves as I want it to, BUT the problem is that that textfield in the subform has to be triggered to appear by a button (add comments) and that is what I don't want. I want the textfield to be visible from the beginning. But in that example you CAN see the pagination tab and make changes in it.

I searched a lot in the Adobe Helpfiles of Designer, and I even bought and read/studied the book 'Creating Dynamic Forms with Adobe LiveCycle Designer', but still I'm not able to get this done.

Is there anyone who can help me?

Thanks in advance,

Sterre