If this answer looks facetious it means I've not quite grasped what you're asking, but the MMI simply remembers the last selection you made - simply turn the control knob until the menu is showing (or press the menu button) and it'll stay like it until you select another screen.
If you think I'm talking through my arse, please explain a little further and I'll help if I can.
Thanks for your replies. You were both on the same wavelength as my rather
cryptic post! What I want is the picture of the car on screen, but it seems that even
if I leave the screen there when I turn it back on it goes on to highlighted
Icon. There doesn't seem to be a neutral position, if you get my drift?☺