How to set MP options for Channels 10-14

I have a quad with a Pixracer FC running
firmware 3.6.12 or 4.0/3. I have tried Mission Planner
versions 1.3.4 to 1.3.7 and none of them show
a place to enter options for those channels.
Radio Calibration page shows all channels from
1-14 and all respond to Tx commands. Full Parm
List doesn’t show chan. 13 or 14.

Go into the full parameters list.

From there you will see options for rc(x) where x is the channel you want to set.

RC10_OPTION: RC input option

Function assigned to this RC channel

Values
Value Meaning


0 Do Nothing
2 Flip
3 Simple Mode
4 RTL
5 Save Trim
7 Save WP
9 Camera Trigger
10 RangeFinder
11 Fence
13 Super Simple Mode
14 Acro Trainer
15 Sprayer
16 Auto
17 AutoTune
18 Land
19 Gripper
21 Parachute Enable
22 Parachute Release
23 Parachute 3pos
24 Auto Mission Reset
25 AttCon Feed Forward
26 AttCon Accel Limits
27 Retract Mount
28 Relay On/Off
29 Landing Gear
30 Lost Copter Sound
31 Motor Emergency Stop
32 Motor Interlock
33 Brake
34 Relay2 On/Off
35 Relay3 On/Off
36 Relay4 On/Off
37 Throw
38 ADSB Avoidance En
39 PrecLoiter
40 Proximity Avoidance
41 ArmDisarm
42 SmartRTL
43 InvertedFlight
46 RC Override Enable
47 User Function 1
48 User Function 2
49 User Function 3
52 Acro
55 Guided
56 Loiter
57 Follow
58 Clear Waypoints
60 ZigZag
61 ZigZag SaveWP
62 Compass Learn
65 GPS Disable
66 Relay5
67 Relay6
68 Stabilize
69 PosHold
70 AltHold
71 FlowHold
72 Circle
73 Drift
76 Standby Mode
78 RunCam Control
79 RunCam OSD Control
80 Viso Align
81 Disarm
100 KillIMU1
101 KillIMU2
102 Camera Mode Toggle

On my Pixhawk and my Matek F405-STD I have options for 7, 8, 9 & 10 in Extended Tuning with the drop down. 11-16 I can access through the Full Parameter list but it would be nice if there were proper options under Extended Tuning.