Do you mean T4 or K4? The K4 has 4 composite inputs which can be wired to be 2 S-Video inputs. Even though it is in the page wizard, to my knowledge you can not send a video feed into a T4, unless you have some type of video to ip converter and then make it a web page. They were suppose to bring out an inwall docking station that would add wired ethernet and video inputs when docked, but I don't believe they ever did. As far as changing the size, all you have to do is go into the properties of the button and change the size. Or you could just drag a side of the image if you so liked.