There should be a button that says tilt on it. I think it is the same button as number two. Once you are in there, you should get a bar graph of the signal. Hit tilt again to get the numerical read out of each channel and tilt once more to go back to the bar graph. One of the function keys will say setup (maybe F1), scroll through the channels and select the ones you want to measure then hit the setup button again to save the changes and you will be ready to go. You will then only have to hit one button to measure as many channels as you want. You may have to hit the button twice depending on if you want bar graphs or numbers but oh well.
This is CABL.com posting #176524. Tiny Link: cabl.co/mT5k