..old thread but maybe useful Info
@Dirtycrow: I you install both Plugin's you have a upper AND a lower bar

Don't know how this will work. We need a "ON/OFF" Option for the Upper/Lower Bar
@ Mac27: Nothing to edit ! You have to Install the Plugin you would like to see (The Upper OR the Lower Navi)-Version. If you select "Turn your second menu online?" = YES the second Navibar will also show up.
Sorry for my terrible english