Hi, I have just started learning HD Pro, and have run into a snag. The Users Guide told me to create an interior dimension, so I did, and got the 3' and 6'5 dimensions, whereas they got one dimension that was not broken into 2 parts. Now they want me to move the vertical wall so that the interior dimension is 9'7-3/4. I'm trying to move the wall using dimensions, just like I moved all the exterior walls into place, but it is not working. I can't move that wall using dimensions, or by dragging it. There are no drag handles on it. Can anyone help?