governor setup & flying style setup

Hi. Q1. How to assign a switch in the Transmitter and setup to the ikon the Auto Level / Rescue & Flying style setup. I am using Futaba T16SZ. I know how to assign a switch for Idleup 1, 2, 3 & Hold positions. Q2. In flying style setup (setup 13), there is option to choose "USE GOVERNOR". What...