Index: firmware/App/Modes/FPModes/FPOperationModes.h
===================================================================
diff -u -rd18ed8a1064006f220e75096c723077dda62b500 -ra36dcbc3e2f94d418d8aa54588c836a3adf35e17
--- firmware/App/Modes/FPModes/FPOperationModes.h	(.../FPOperationModes.h)	(revision d18ed8a1064006f220e75096c723077dda62b500)
+++ firmware/App/Modes/FPModes/FPOperationModes.h	(.../FPOperationModes.h)	(revision a36dcbc3e2f94d418d8aa54588c836a3adf35e17)
@@ -52,8 +52,7 @@
 // ********** public function prototypes **********
 
 void initFPOperationModes( void );                                    // Initialize this unit
-void execFPOperationModes( void );
-
+void execFPOperationModes( void );                                    // execute the FP operation modes state machine (scheduled periodic call)
 void requestNewFPOperationMode( FP_OP_MODE_T newMode );               // Request a transition to a new operation mode
 FP_OP_MODE_T getCurrentFPOperationMode( void );                       // Get the current operation mode
 FP_OP_MODE_T getPreviousFPOperationMode( void );                      // Get the previous operation mode
@@ -66,6 +65,7 @@
 void setCurrentFPSubState( U32 subState );                            // Set the current substate.
 void setCurrentFP4thLevelState( U32 state );                          // Set the current 4th level state.
 BOOL testSetFPOperationMode( MESSAGE_T *message );                    // Set operation mode override
+BOOL testSetFPOperationSubMode( MESSAGE_T *message );                 // Set operation sub mode override
 BOOL testSetFPOpModePublishIntervalOverride( MESSAGE_T *message );    // Set operation mode publish interval override
 BOOL testSetGeneratePermeateSignal( MESSAGE_T *message );             // Set start stop generate permeate.
 BOOL testGetFPDefeaturedStatus( MESSAGE_T *message );                 // Send a response message with FP defeatured status payload