I have an echomap chirp 73cv. Also have a humminbird helix. Both take screenshots. On the bird, you can view your screenshots on the control head. I don't think I can (or haven't figured out how to) on the garmin. This is handy for review on the lake from time to time. I can view the garmin on the computer no problem. Any reason its not possible to view on the control head on the garmin?