Futaba T8J and Changing Settings for Smoother Flight

Hi everyone,

I just watched the following video regarding changing your settings on your Futaba T8J for smoother flight: http://www.youtube.com/watch?v=bn9jzFxT8dE
Excellent video and followed everything.

However, when I get to Channel 4, it won't let me change the Expo/DR settings settings for the arrow pointing to the right??? Is there a reason for that?
 



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