1) open app/ hit 3dot/settings
4)find and choose the edify.zip and or your Rom zip
6)should say success/ hit back
8)press green arrow and choose SOFTKEY. zip
If u have multiple mods u want added after the first one hit theme + again and choose 2nd zip
9)press build/ always make undo(to go back when ever you want)wait til done
10)reboot recovery and look for SOFTKEY/LOCK ICON update zip and flash...DONE / REBOOT
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