Hi. Hopefully an easy question! If my DVR say only accepts highest resolution analog TVI camera of 5MP, but having a hard time finding a camera that's 5MP, can I hook up say a 6 or 8MP and just go into the camera settings and set it to 5MP? Or won't i get that far, as in I won't be able to get to the cameras menu via the DVR? I don't want to buy a higher res and not be able to use it, that's all. Thanks in advance.