Larry T

Does anyone know if you can type in exact dimensions for a wall, fence, deck ect.? I can't figure out how to do anything but free draw. For example, if I want a wall 41'6", then i free draw and try to stop at that exact spot. I usually end up off by an inch or 2. I would like to be able to select a start point on the X and Y axis and then type in the length. It's too hard to read the X and Y lengths near your camera control and stop exactly where you want.