No, that feature was available in DP4 but was removed in DP5 and isn't present in the final release. There's no 'Advanced' menu under Settings in the Camera app.I dont have N yet, but I found this, does it work:
http://www.droid-life.com/2014/04/16/how-to-turn-on-manual-exposure-in-the-new-google-camera/