diff --git a/RMFT2.cpp b/RMFT2.cpp
index 5e4fd62..07ba06e 100644
--- a/RMFT2.cpp
+++ b/RMFT2.cpp
@@ -243,7 +243,9 @@ bool RMFT2::parseSlash(Print * stream, byte & paramCount, int16_t p[]) {
 // handing over the loco to the automation.
 // Routes are given "Set" buttons and do not cause the loco to be handed over. 
 void RMFT2::emitWithrottleRouteList(Print* stream) {
-   StringFormatter::send(stream,F("PRT]\\[Routes}|{Route]\\[Set}|{2]\\[Handoff}|{4\nPRL%S\n"),RouteDescription);
+   StringFormatter::send(stream,F("PRT]\\[Routes}|{Route]\\[Set}|{2]\\[Handoff}|{4\nPRL"));
+   emitWithrottleDescriptions(stream);
+   StringFormatter::send(stream,F("\n"));
 }
 
 
@@ -682,4 +684,10 @@ void RMFT2::kill(const FSH * reason, int operand) {
  void RMFT2::printMessage2(const FSH * msg) {
         DIAG(F("EXRAIL(%d) %S"),loco,msg);
    }
+
+// This is called by emitRouteDescriptions to emit a withrottle description for a route or autoomation. 
+void RMFT2::emitRouteDescription(Print * stream, char type, int id, const FSH * description) {
+ StringFormatter::send(stream,F("]\\[%c%d}|{%S}|{%c"),
+              type,id,description, type=='R'?'2':'4');
+}
  
diff --git a/RMFT2.h b/RMFT2.h
index 77e21bc..e69696d 100644
--- a/RMFT2.h
+++ b/RMFT2.h
@@ -78,7 +78,9 @@ private:
     static int locateRouteStart(int16_t _route);
     static int progtrackLocoId;
     static void doSignal(VPIN id,bool red, bool amber, bool green); 
-
+    static void emitRouteDescription(Print * stream, char type, int id, const FSH * description);
+    static void emitWithrottleDescriptions(Print * stream);
+    
     static RMFT2 * loopTask;
     static RMFT2 * pausingTask;
     void delayMe(long millisecs);
@@ -90,10 +92,10 @@ private:
     void kill(const FSH * reason=NULL,int operand=0);          
     void printMessage(uint16_t id);  // Built by RMFTMacros.h
     void printMessage2(const FSH * msg);
+
     
    static bool diag;
    static const  FLASH  byte RouteCode[];
-   static const  FLASH char RouteDescription[];
    static byte flags[MAX_FLAGS];
  
   // Local variables - exist for each instance/task 
diff --git a/RMFTMacros.h b/RMFTMacros.h
index 2225426..7c6c9d2 100644
--- a/RMFTMacros.h
+++ b/RMFTMacros.h
@@ -19,6 +19,14 @@
 #ifndef RMFTMacros_H
 #define RMFTMacros_H
 
+// remove normal code LCD macro (will be restored later)
+#undef LCD
+
+
+// This file will include and build the EXRAIL script and associated helper tricks.
+// It does this by incliding myAutomation.h several times, each with a set of macros to 
+// extract the relevant parts.
+
 // The entire automation script is contained within a byte array RMFT2::RouteCode[]
 // made up of opcode and parameter pairs.
 // ech opcode is a 1 byte operation plus 2 byte operand. 
@@ -29,26 +37,25 @@
 // - multiple parameters aligned correctly
 // - a single macro requires multiple operations
 
-// Descriptive texts for routes and animations are created in a sepaerate array RMFT2::RouteDescription[]
-// but since the C preprocessor is such a wimp, we have to pass over the myAutomation.h 2 times with
-// different macros. 
+// Descriptive texts for routes and animations are created in a sepaerate function which
+// can be called to emit a list of routes/automatuions in a form suitable for Withrottle. 
  
-// PRINT(msg) is implemented in a separate pass to create a getMessageText(id) function  
-#define V(val) ((int16_t)(val))&0x00FF,((int16_t)(val)>>8)&0x00FF
-#define NOP 0,0
-// remove normal code LCD macro (will be restored later)
-#undef LCD
+// PRINT(msg) and LCD(row,msg) is implemented in a separate pass to create 
+// a getMessageText(id) function.  
 
-// CAUTION: The macros below are triple passed over myAutomation.h
+// CAUTION: The macros below are multiple passed over myAutomation.h
 
-// Pass 1 Macros convert descriptions to a flash string constant in withrottle format.
+// Pass 1 Implements aliases and 
+// converts descriptions to  withrottle format emitter function
 // Most macros are simply ignored in this pass.
-#define ROUTE(id, description)    "]\\[R" #id "}|{" description "}|{2"
-#define AUTOMATION(id, description)  "]\\[A" #id "}|{" description "}|{4"
-#define EXRAIL  const FLASH char  RMFT2::RouteDescription[]=
-#define ENDEXRAIL  "";
+
+
+#define ALIAS(name,value) const int name=value; 
+#define EXRAIL  void  RMFT2::emitWithrottleDescriptions(Print * stream) {
+#define ROUTE(id, description) emitRouteDescription(stream,'R',id,F(description));
+#define AUTOMATION(id, description) emitRouteDescription(stream,'A',id,F(description));
+#define ENDEXRAIL  }
  
-#define ALIAS(name,value)  
 #define AFTER(sensor_id)
 #define AMBER(signal_id)
 #define AT(sensor_id)
@@ -107,6 +114,7 @@
 #include "myAutomation.h"
 
 // setup for pass 2... Create getMessageText function
+#undef ALIAS
 #undef ROUTE
 #undef AUTOMATION  
 #define ROUTE(id, description)
@@ -117,13 +125,14 @@
 #undef ENDEXRAIL  
 #undef LCD
 const int StringMacroTracker1=__COUNTER__;
+#define ALIAS(name,value) 
 #define EXRAIL void  RMFT2::printMessage(uint16_t id) { switch(id) {
 #define ENDEXRAIL  default: DIAG(F("printMessage error %d %d"),id,StringMacroTracker1); return ; }}
 #define PRINT(msg)  case (__COUNTER__ - StringMacroTracker1) : printMessage2(F(msg));break;
 #define LCD(id,msg)  case (__COUNTER__ - StringMacroTracker1) : StringFormatter::lcd(id,F(msg));break;
 #include "myAutomation.h"
- 
-#undef ALIAS
+
+// Setup for Pass 3: create main routes table 
 #undef AFTER
 #undef AMBER
 #undef AT
@@ -182,8 +191,11 @@ const int StringMacroTracker1=__COUNTER__;
 #undef UNJOIN
 #undef UNLATCH
 
-// Define macros or route code creation 
-#define ALIAS(name,value) const int name=value;
+// Define macros for route code creation 
+#define V(val) ((int16_t)(val))&0x00FF,((int16_t)(val)>>8)&0x00FF
+#define NOP 0,0
+
+#define ALIAS(name,value) 
 #define EXRAIL const  FLASH  byte RMFT2::RouteCode[] = {
 #define AUTOMATION(id, description)  OPCODE_AUTOMATION, V(id), 
 #define ROUTE(id, description)  OPCODE_ROUTE, V(id),