777 overhead electrical panel - 2 versions?
On the 777 electrical overhead panel, I've seen pictures/diagrams where there seems to be two somewhat different versions of the panel.
On some, there are 2 extra buttons, "IFE/pass seats" and "cabin/utility". Why do some planes have this and some don't?
How does a pilot cut power to the in flight entertainment system if flying a model without this button?