1) open app/ hit settings.
4)choose the zip file of the ROM ur running
6)should say success/ hit back
8)press green an arrow and choose SOFTKEY/LOCK ICON zip
9)press build/ always make undo(to go back when ever you want)wait til done
10)reboot recovery/ install/ and look for SOFTKEY/LOCK ICON update zip and flash.
There will also be a undo zip for later use.
Really hope this helps. This will work for 99% of mods so long as u update edify for each ROM.
Sent from my Galaxy Nexus using xda app-developers app