Ok I figured it out, to get the main platform select view, you go to Options>Views>Platform List View and select Text List With Details
Some other issues I'm having:
3DO platform box art showing the _Default coverbox image, though the image file does exist and is in the right folder.
All platform box art fades out after a few seconds leaving a blank space.
Platform themes that use multiple screenshot files showing the same screenshot:
e.x. DS and 3DS showing the same screenshot on the left and right inside the console screen. (Console screen should should show title screen)
NES showing same image in little tv screen as bigger image on the right (which I'd prefer to show the cart).
And yes, I have multiple images and they're in the right folders.