There are quite a few optional plugins for nUI you will find at
http://www.wowinterface.com/downloads/cat125.html
Among those are two that modify how Omen and Recount are displayed. One of them places the two panels side by side in one info panel display. The other makes them automatically switch between Omen in combat and Recount out of combat. Look in the "nUI: Info Panel Plugins" section for those.