Pretty certain that it is the same as on my 2015 Advance. The only function that will remain big screen is the 'car' function, both the bar chart screen and the power distribution screen.
For definate the big audio screen switches out, but on my split screen the Channel shows unless off when it shows the speaker symbol.
That from memory can be altered in settings.
For full screen it's sat nav or nothing though.
It doesn't switch off though.