Iris gimbal

tarot gimbal with iris works well when not armed but when armed and flying you can not control the gimbal with the controller
secondly if you change the mode on the transmitter and then reverse the forward and reverse on the transmitter, when when doing a mission the the copter fly back ward i.e it flys forward with the green light at the back
so the gimbal is looking back wards not forward how do you change the direction of the flight in auto