Cannot view SERVOx_FUNCTION parameters

Running 4.2.1 arduplane on matek 765 wing flight control .
Within mission planner on the configuration screen it’s impossible to see all the choices for servox_function setting . Servo13 is set to 120 by default . I cannot even read what 120 stands for .
There are so many choices that it takes more than one full screen to see them all . Problem is it doesn’t let you scroll down to see them all .
The screen advances to the next parameter .
I cannot see any choices above about 105

That wouldn’t be an ArduPlane issue. Mission Planner.
You can find them here too:
Parameter List