Given four video inputs, will display each of the video signals on-screen on the HECTOR machine within a single window. The video outputS allow each video signal to be fed through after being displayed, so they can be used elsewhere. Note that this output method is primarily designed as a preview window that should not interfere with the operation of a video signal. Therefore, if the video signal frame rate is operating faster than the screen output can handle, it will tend to drop frames on the screen output, whilst allowing the correct number of frames to feed through on the video out.