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I downloaded the app on my LG G4, I hooked up my Nikon D7100 and when I tried to fine tune/Change the value for Kelvin or Pre, there was no option. Am I missing something or does that only work for certain cameras?

I was checking out the app and I cannot seem to find the option to fine tune the Pre or Kelvin white balance for a Nikon D7100 using android.
Is my app out of date or am I missing something?