RTA is "Real Time Analyzer." Don't go there.
Open up a measuring window.
Look at the top toolbar and click on the box labeled "Overlays."
Look at the top right corner and the second box from the right with arrows pointing in the four cardinal directions and click on that box.
Set parameters accordingly.
FWIW, it's recommended by Chris of Audyssey, to set all speakers to small, crossovers to 80Hz and the subwoofer channel to LFE.
Based on your above graph, in the AVR main menu, I'd boost the subwoofer setting, +3dB and the center channel (dialogue) setting, I'd boost +3dB and take new measurements to monitor the change.
To clean up our graph, I found need to add a DSPeaker, Anti-Mode, 8033S II which is run in tandem with Audyssey, MultEQ XT. In hindsight, starting out with an AVR equipped with MultEQ XT32, is a much better starting position due to it's ability to separately EQ subs in stereo and does so with four hundred subwoofer filters.
-Edited by BeeMan458 - 4/12/13 at 9:11am