Plane: Add Q_FWD_THR_GAIN to table of transmitter tuning parameters

ArduPlane/tuning.cpp

@@ -94,6 +94,7 @@ const AP_Tuning_Plane::tuning_name AP_Tuning_Plane::tuning_names[] = {
     { TUNING_PIT_I,        "PitchI" },
     { TUNING_PIT_D,        "PitchD" },
     { TUNING_PIT_FF,       "PitchFF" },
+    { TUNING_Q_FWD_THR,    "QModeFwdThr" },
     { TUNING_NONE, nullptr }
 };
 
@@ -190,6 +191,9 @@ AP_Float *AP_Tuning_Plane::get_param_pointer(uint8_t parm)
 
     case TUNING_RATE_YAW_FF:
         return &plane.quadplane.attitude_control->get_rate_yaw_pid().ff();
+
+    case TUNING_Q_FWD_THR:
+        return &plane.quadplane.q_fwd_thr_gain;
 #endif // HAL_QUADPLANE_ENABLED
 
     // fixed wing tuning parameters

ArduPlane/tuning.h

@@ -76,6 +76,8 @@ private:
         TUNING_PIT_I =                        55,
         TUNING_PIT_D =                        56,
         TUNING_PIT_FF =                       57,
+
+        TUNING_Q_FWD_THR =                    58,
     };
 
     /*