cant check collective control of throttle in nitro governor setup menu

im trying to edit my setup on my trex 700n with my touch, when getting to the end point part of the throttle setup, the part that you check to enable collective control of the throttle is not highlighted and can not be selected. Do you have any idea why? something maybe I have to deactivate before moving forward?? I am going over my setup because the throttle servo moves when switching from "motor off" to flight mode 1 which is a direct bank.

Figured it out! I was looking around and found that my collective calibration was off and not 100/100 so it wasn't seeing full negative and that's why the box wasn't allowing me to check it. also this is why my throttle servo would jump when flipping out of hold. Not sure how this happened but I guess its good to keep an eye on it.