GeoVision DMMultiView not able to enable video polling

We Recently had a customer who was viewing his cameras remotely using the DMMultiView.He was trying to enable video polling to cycle through the cameras one at a time. After clicking the video polling it would only cycle one camera.

Solution: Hold down the ctrl button on your keyboard while holding, click all of the cameras you want to cycle through. If you are doing this correctly the camera box that you a selecting should have a red rim around the outside of the box. So you should have a red rim around all of the cameras you want to cycle through. Once you have all of the cameras selected press the video polling button. You have just successfully enabled video Polling!