I need to have multi-line text input on a page so I have tried using the Editor control as it supports multi-line. My problem is that while it accepts multiple input lines, I can't seem to expand the area of the control to display more of the text that had been entered at any one time (e.g. 10 lines or so). It doesn't seem to have properties to set it's size. I've tried spanning it across multiple rows and columns of a grid but that didn't work. Is it even possible? Am I missing something? Is there anything better "out of the box" or do I need to create a custom control?