They call the rooms facing the Savanna, that is in the center of the two resort wings, "Arusha Savanna." Would you try searching with that title? When I search for that quite a few show up on the 2nd and 3rd floors -- part of the 4th floor are Club Level rooms.
Unfortunately there isn't a way to make general requests through our site, although you can often do that by calling Disney. You can, however, add a note to your room request that you make through us. To do that, once you pick your requested room, go back to your dashboard (the page that pops up when you navigate to TouringPlans.com while signed in) and click the button in the center that says "Configure Room Request." Within that window you will see a space for "Additional Information," where you can enter whatever you like.