diff --git a/libraries/RC_Channel/RC_Channel.cpp b/libraries/RC_Channel/RC_Channel.cpp
index 88ba857515..04508c3f7b 100644
--- a/libraries/RC_Channel/RC_Channel.cpp
+++ b/libraries/RC_Channel/RC_Channel.cpp
@@ -239,6 +239,7 @@ const AP_Param::GroupInfo RC_Channel::var_info[] = {
     // @Values{Plane}: 176:Quadplane Fwd Throttle Override enable
     // @Values{Copter, Rover, Plane, Blimp}: 177:Mount LRF enable
     // @Values{Copter}: 178:FlightMode Pause/Resume
+    // @Values{Copter, Plane}: 180:Test autotuned gains after tune is complete
     // @Values{Rover}: 201:Roll
     // @Values{Rover}: 202:Pitch
     // @Values{Rover}: 207:MainSail
diff --git a/libraries/RC_Channel/RC_Channel.h b/libraries/RC_Channel/RC_Channel.h
index 97dddce75b..496a3187d5 100644
--- a/libraries/RC_Channel/RC_Channel.h
+++ b/libraries/RC_Channel/RC_Channel.h
@@ -119,7 +119,7 @@ public:
         ACRO_TRAINER =        14, // low = disabled, middle = leveled, high = leveled and limited
         SPRAYER =             15, // enable/disable the crop sprayer
         AUTO =                16, // change to auto flight mode
-        AUTOTUNE =            17, // auto tune
+        AUTOTUNE_MODE =       17, // auto tune
         LAND =                18, // change to LAND flight mode
         GRIPPER =             19, // Operate cargo grippers low=off, middle=neutral, high=on
         PARACHUTE_ENABLE  =   21, // Parachute enable/disable
@@ -252,6 +252,7 @@ public:
         VFWD_THR_OVERRIDE =  176, // force enabled VTOL forward throttle method
         MOUNT_LRF_ENABLE =   177,  // mount LRF enable/disable
         FLIGHTMODE_PAUSE =   178,  // e.g. pause movement towards waypoint
+        AUTOTUNE_TEST_GAINS = 180, // auto tune tuning switch to test or revert gains
 
 
         // inputs from 200 will eventually used to replace RCMAP