I have difficulty finding the side imaging and how to change the setting. Humminbird emailed me...
"You have to be in the side imaging views to access the Side Imaging X-Press menu. If you are in any side imaging views, press the Menu key once, and you will get the Side Imaging X-press menu."
DUH! That's the problem. Where is the side imaging under the sonor menu?
I'm reasonably intelligent but electronics are not my cup of tea.