I did a little Googling like you kev and it doesn't seem like a good method is available to do that. Can you flash an mf3 rom to get what you want. Not sure if that is possible either. I am mdl so not up on the latest builds--
ATT Samsung Galaxy S4/Rooted/TWRP 126.96.36.199/Wanam Xposed, or Gravity Box/Long Time MultiRom Flasher/Waiting For The Note 4--The Game Changer
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