I used P function to assign Flight Style in channel mapping on Channel 8. When doing this I adjusted my sub trim and servo travel to get the values I wanted using a 3 position switch on Aux 3. But when I go back to General page I don't see the Flight Style value changing via the radio I only see it changing when in channel mapping page. Is this Correct ?

Yes, that's how that works. You cannot go by what is on the radio interface. Just go by the predetermined values you assigned to each position of your three-way switch as shown on the computer GUI.

OK you go by only what you see on the channel mapping page. So for instance if you assign Function Directional Rate you only see it changing in Channel Mapping not in the Stabi screen. Correct ?

Yes. That is correct. You go by the value on the "Channel Maping" display. You'll see the value change as you adjust the transmitter switches/sliders/knobs. Do not worry about the value for the parameter on the "tabs".